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1. Absenteeism and Health Behavior Trends Associated With Acute Respiratory Illness Before and During the COVID-19 Pandemic in a Community Household Cohort, King County, Washington

Author

Erin Chung, MD, Yongzhe Wang, MS, Eric J. Chow, MD, MS, MPH, Anne Emanuels, MPH, Jessica Heimonen, MPH, Constance E. Ogokeh, MPH, Melissa A. Rolfes, PhD, MPH, James P. Hughes, PhD, Timothy M. Uyeki, MD, MPH, MPP, Lea M. Starita, PhD, Samara Hoag, MN, RN, Michael Boeckh, MD, PhD, Janet A. Englund, MD, and Helen Y. Chu, MD, MPH

Subjects
COVID-19, illness behavior, non-pharmaceutical interventions, absenteeism, viral infections, households, Public aspects of medicine, RA1-1270
Abstract

Introduction: Longitudinal data on how acute respiratory illness (ARI) affects behavior, namely school or work participation, and nonpharmaceutical intervention (NPI) usage before and during the COVID-19 pandemic is limited. The authors assessed how ARIs and specific symptoms affected school, work, and health-related behaviors over time. Methods: From November 2019 to June 2021, participating households with children in King County, Washington, were remotely monitored for ARI symptoms weekly. Following ARIs, participants reported illness-related effects on school, work, and NPI use. Using logistic regression with generalized estimating equations, the authors examined associations between symptoms and behaviors. Results: Of 1,861 participants, 581 (31%) from 293 households reported 884 ARIs and completed one-week follow-up surveys. Compared with the prepandemic period, during the period of the pandemic pre–COVID-19 vaccine, ARI-related school (56% vs 10%, p

Published
2024
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2. Remote surveillance and detection of SARS-CoV-2 transmission among household members in King County, Washington

Author

Anne Emanuels, Amanda M. Casto, Jessica Heimonen, Jessica O’Hanlon, Eric J. Chow, Constance Ogokeh, Melissa A. Rolfes, Peter D. Han, James P. Hughes, Timothy M. Uyeki, Christian Frazar, Erin Chung, Lea M. Starita, Janet A. Englund, Helen Y. Chu, and Seattle Flu Study Investigators

Subjects
SARS-CoV-2 infection, Remote surveillance, Household transmission, Longitudinal cohort, Whole genome sequencing, Infectious and parasitic diseases, RC109-216
Abstract

Abstract Background Early during the COVID-19 pandemic, it was important to better understand transmission dynamics of SARS-CoV-2, the virus that causes COVID-19. Household contacts of infected individuals are particularly at risk for infection, but delays in contact tracing, delays in testing contacts, and isolation and quarantine posed challenges to accurately capturing secondary household cases. Methods In this study, 346 households in the Seattle region were provided with respiratory specimen collection kits and remotely monitored using web-based surveys for respiratory illness symptoms weekly between October 1, 2020, and June 20, 2021. Symptomatic participants collected respiratory specimens at symptom onset and mailed specimens to the central laboratory in Seattle. Specimens were tested for SARS-CoV-2 using RT-PCR with whole genome sequencing attempted when positive. SARS-CoV-2-infected individuals were notified, and their household contacts submitted specimens every 2 days for 14 days. Results In total, 1371 participants collected 2029 specimens that were tested; 16 individuals (1.2%) within 6 households tested positive for SARS-CoV-2 during the study period. Full genome sequences were generated from 11 individuals within 4 households. Very little genetic variation was found among SARS-CoV-2 viruses sequenced from different individuals in the same household, supporting transmission within the household. Conclusions This study indicates web-based surveillance of respiratory symptoms, combined with rapid and longitudinal specimen collection and remote contact tracing, provides a viable strategy to monitor households and detect household transmission of SARS-CoV-2. Trial registration identifier NCT04141930, Date of registration 28/10/2019.

Published
2024
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3. Risk of COVID-19 after natural infection or vaccinationResearch in context

Author

Anne-Marie Rick, Matthew B. Laurens, Ying Huang, Chenchen Yu, Thomas C.S. Martin, Carina A. Rodriguez, Christina A. Rostad, Rebone M. Maboa, Lindsey R. Baden, Hana M. El Sahly, Beatriz Grinsztejn, Glenda E. Gray, Cynthia L. Gay, Peter B. Gilbert, Holly E. Janes, James G. Kublin, Yunda Huang, Brett Leav, Ian Hirsch, Frank Struyf, Lisa M. Dunkle, Kathleen M. Neuzil, Lawrence Corey, Paul A. Goepfert, Stephen R. Walsh, Dean Follmann, Karen L. Kotloff, Atoya Adams, Eric Miller, Bruce G. Rankin, Steven Shinn, Marshall Nash, Sinikka L. Green, Colleen Jacobsen, Jayasree Krishnankutty, Sikhongi Phungwayo, Richard M. Glover, II, Stacy Slechta, Troy Holdeman, Robyn Hartvickson, Amber Grant, Terry L. Poling, Terry D. Klein, Thomas C. Klein, Tracy R. Klein, William B. Smith, Richard L. Gibson, Jennifer Winbigler, Elizabeth Parker, Priyantha N. Wijewardane, Eric Bravo, Jeffrey Thessing, Michelle Maxwell, Amanda Horn, Catherine Mary Healy, Christine Akamine, Laurence Chu, R. Michelle Chouteau, Michael J. Cotugno, George H. Bauer, Jr., Greg Hachigian, Masaru Oshita, Michael Cancilla, Kristen Kiersey, William Seger, Mohammed Antwi, Allison Green, Anthony Kim, Michael Desjardins, Jennifer A. Johnson, Amy Sherman, Judith Borger, Nafisa Saleem, Joel Solis, Martha Carmen Medina, Westly Keating, Edgar Garcia, Cynthia Bueno, Nathan Segall, Douglas S. Denham, Thomas Weiss, Ayoade Avworo, Parke Hedges, Cynthia Becher Strout, Rica Santiago, Yvonne Davis, Patty Howenstine, Alison Bondell, Kristin Marks, Tina Wang, Timothy Wilkin, Mary Vogler, Carrie Johnston, Michele P. Andrasik, Jessica G. Andriesen, Gail Broder, Niles Eaton, Huub G. Gelderblom, Rachael McClennen, Nelson Michael, Merlin Robb, Carrie Sopher, Vicki E. Miller, Fredric Santiago, Blanca Gomez, Insiya Valika, Amy Starr, Valeria D. Cantos, Sheetal Kandiah, Carlos del Rio, Nadine Rouphael, Srilatha Edupuganti, Evan J. Anderson, Andres Camacho-Gonzalez, Satoshi Kamidani, Meghan Teherani, David J. Diemert, Elissa Malkin, Marc Siegel, Afsoon Roberts, Gary Simon, Bindu Balani, Carolene Stephenson, Steven Sperber, Cristina Cicogna, Marcus J. Zervos, Paul Kilgore, Mayur Ramesh, Erica Herc, Kate Zenlea, Abram Burgher, Ann M. Milliken, Joseph D. Davis, Brendan Levy, Sandra Kelman, Matthew W. Doust, Denise Sample, Sandra Erickson, Shane G. Christensen, Christopher Matich, James Longe, John Witbeck, James T. Peterson, Alexander Clark, Gerald Kelty, Issac Pena-Renteria, Michael J. Koren, Darlene Bartilucci, Alpa Patel, Carolyn Tran, Christina Kennelly, Robert Brownlee, Jacob Coleman, Hala Webster, Carlos A. Fierro, Natalia Leistner, Amy Thompson, Celia Gonzalez, Lisa A. Jackson, Janice Suyehira, Milton Haber, Maria M. Regalado, Veronica Procasky, Alisha Lutat, Carl P. Griffin, Ripley R. Hollister, Jeremy Brown, Melody Ronk, Wayne L. Harper, Lisa Cohen, Lynn Eckert, Matthew Hong, Rambod Rouhbakhsh, Elizabeth Danford, John Johnson, Richard Calderone, Shishir K. Khetan, Oyebisi Olanrewaju, Nan Zhai, Kimberly Nieves, Allison O'Brien, Paul S. Bradley, Amanda Lilienthal, Jim Callis, Adam B. Brosz, Andrea Clement, Whitney West, Luke Friesen, Paul Cramer, Frank S. Eder, Ryan Little, Victoria Engler, Heather Rattenbury-Shaw, David J. Ensz, Allie Oplinger, Brandon J. Essink, Jay Meyer, Frederick Raiser, III, Kimberly Mueller, Keith W. Vrbicky, Charles Harper, Chelsie Nutsch, Wendell Lewis, III, Cathy Laflan, Jordan L. Whatley, Nicole Harrell, Amie Shannon, Crystal Rowell, Christopher Dedon, Mamodikoe Makhene, Gregory M. Gottschlich, Kate Harden, Melissa Gottschlich, Mary Smith, Richard Powell, Murray A. Kimmel, Simmy Pinto, Timothy P. Vachris, Mark Hutchens, Stephen Daniels, Margaret Wells, Mimi Van Der Leden, Peta-Gay Jackson-Booth, Mira Baron, Pamela Kane, Shannen Seversen, Mara Kryvicky, Julia Lord, Jamshid Saleh, Matthew Miles, Rafael Lupercio, John W. McGettigan, Jr., Walter Patton, Riemke Brakema, Karin Choquette, Jonlyn McGettigan, Judith L. Kirstein, Marcia Bernard, Mary Beth Manning, Joan Rothenberg, Toby Briskin, Denise Roadman, Sharita Tedder-Edwards, Howard I. Schwartz, Surisday Mederos, Shobha Swaminathan, Amesika Nyaku, Tilly Varughese, Michelle DallaPiazza, Sharon E. Frey, Irene Graham, Getahun Abate, Daniel Hoft, Leland N. Allen, III, Leslie A. Edwards, William S. Davis, Jr., Jessica M. Mena, Mark E. Kutner, Jorge Caso, Maria Hernandez Moran, Marianela Carvajal, Janet Mendez, Larkin T. Wadsworth, III, Michael R. Adams, Leslie Iverson, Joseph L. Newberg, Laura Pearlman, Paul J. Nugent, Michele D. Reynolds, Jennifer Bashour, Robert Schmidt, Neil P. Sheth, Kenneth Steil, Ramy J. Toma, William Kirby, Pink Folmar, Samantha Williams, Paul Pickrell, Stefanie Mott, Carol Ann Linebarger, Hussain Malbari, David Pampe, Veronica G. Fragoso, Lisa Holloway, Cecilia McKeown-Bragas, Teresa Becker, Barton G. Williams, William H. Jones, Jesse L. Clark, Steven Shoptaw, Michele Vertucci, Will Hernandez, Stephen A. Spector, Amaran Moodley, Jill Blumenthal, Lisa Stangl, Karen Deutsch, Kathleen M. Mullane, David Pitrak, Cheryl Nuss, Judy Pi, Carl Fichtenbaum, Margaret Powers-Fletcher, Michelle Saemann, Sharon Kohrs, Thomas B. Campbell, Andrew Lauria, Jose C. Mancilla, Hillary Dunlevy, Richard M. Novak, Andrea Wendrow, Scott Borgetti, Ben Ladner, Lisa Chrisley, Cheryl Young, Susanne Doblecki-Lewis, Maria L. Alcaide, Jose Gonzales-Zamora, Stephen Morris, David Wohl, Joseph Eron, Jr., Ian Frank, Debora Dunbar, David Metzger, Florence Momplaisir, Judith Martin, Alejandro Hoberman, Timothy Shope, Gysella Muniz, Richard Rupp, Amber Stanford, Megan Berman, Laura Porterfield, Michael Lewis, Elham Ghadishah, Joseph Yusin, Mai Pham, Clarence B. Creech, II, Shannon Walker, Stephanie Rolsma, Robert Samuels, Isaac Thomsen, Spyros A. Kalams, Greg Wilson, Gregg H. Lucksinger, Kevin Parks, Ryan Israelsen, Jaleh Ostovar, Kary Kelly, Jeffrey S. Overcash, Hanh Chu, Kia Lee, Luis I. De La Cruz, Steve Clemons, Elizabeth Everette, Suzanna Studdard, Gowdhami Mohan, Stefanie Tyson, Alyssa-Kay Peay, Danyel Johnson, Gregory J. Feldman, May-Yin Suen, Jacqueline Muenzner, Joseph Boscia, Farhan Siddiqui, John Sanders, James Peacock, Julio Nasim, Michael L. Levin, Julie Hussey, Marcy Kulic, Mark M. McKenzie, Teresa Deese, Erica Osmundsen, Christy Sweet, Valentine M. Ebuh, Elwaleed Elnagar, Georgette Ebuh, Genevieve Iwuala, Laurie J. Han-Conrad, Todd Simmons, Denis Tarakjian, Jeremy Ackermann, Mark S. Adams, José O. Alemán, Mohamed S. Al-Ibrahim, David R. Andes, Jeb Andrews, Roberto C. Arduino, Martín Bäcker, Diana Badillo, Emma Bainbridge, Teresa A. Batteiger, Jose A. Bazan, Roger J. Bedimo, Jorge A. Benitez, Annette R. Bennett, David I. Bernstein, Kristin Bialobok, Rebecca Boas, Judith Brady, Cynthia Brown, Catherine A. Bunce, Robert S. Call, Wesley Campbell, Ellie Carmody, Christopher Carpenter, Steven E. Carsons, Marvin Castellon, Mario Castro, Hannah Catan, Jennifer Chang, Mouna G. Chebib, Corey M. Chen, Margaret Cheng, Brian D.W. Chow, Annie Ciambruschini, Joseph P. Connor, James H. Conway, Maureen Cooney, Marcel Curlin, Claudia De La Matta Rodriguez, Jon F. Dedon, Emily Degan, Michelle Dickey, Craig Dietz, Jennifer L. Dong, Brenda Dorcely, Michael P. Dube, Carmel B. Dyer, Benjamin Eckhardt, Edward Ellerbeck, Evan C. Ewers, Amy Falk, Brittany Feijoo, Uriel R. Felsen, Tom Fiel, David Fitz-Patrick, Charles M. Fogarty, Stacy Ford, Lina M. Forero, Elizabeth Formentini, Doris Franco-Vitteri, Robert W. Frenck, Jr., Elie Gharib, Suzanne Gharib, Rola G. Rucker, James N. Goldenberg, Luis H. González, Brett Gray, Rusty Greene, Robert M. Grossberg, Juan V. Guanira-Carranza, Alfredo Gilberto Guerreros Benavides, Clint C. Guillory, Shauna H. Gunaratne, David Halpert, Holli Hamilton, William R. Hartman, Sheryl L. Henderson, Ramin Herati, Laura Hernandez Guarin, Robin Hilder, Ken Ho, Leila Hojat, Sybil G. Hosek, Jeffrey M. Jacobson, Melanie Jay, Diane H. Johnson, Kathleen S. Jones, Edward C. Jones-López, Jessica E. Justman, Scott Kahney, Lois Katz, Melinda Katz, Daniel Kaul, Michael C. Keefer, Ashley Kennedy, Jennifer Knishinsky, Laura Kogelman, Susan L. Koletar, Angelica Kottkamp, Maryrose Laguio-Vila, Raphael J. Landovitz, Jessica L. Lee, Albert Liu, Eneyda Giuvanela Llerena Zegarra, Anna S. Lok, James Lovell, Ronald Lubelchek, John Lucaj, Gary Luckasen, Annie Luetkemeyer, Njira Lucia Lugogo, Janine Maenza, Carlos Malvestutto, Monica Mauri, Ryan C. Maves, Kenneth H. Mayer, Michael J. McCartney, Margaret E. McCort, M. Juliana McElrath, Meredith McNairy, Fernando L. Merino, Eric A. Meyerowitz, Carol L. Mitchell, Cynthia L. Monaco, Sauda Muhammad, Sigridh Muñoz-Gómez, Sonal Munsiff, Paul Nee, Nicole L. Nollen, Asif Noor, Claudio Nuñez Lagos, Jason F. Okulicz, Patrick A. Oliver, Jessica Ortega, Steven Palmer, Lalitha Parameswaran, Purvi Parikh, Susan Parker, Reza Parungao, Juana R. Pavie, Rebecca P. Madan, Henry Peralta, Jennifer Petts, Kristen K. Pierce, E. Javier Pretell Alva, Lawrence J. Purpura, Vanessa Raabe, Sergio E. Recuenco, Tamara Richards, Sharon A. Riddler, Barbara Rizzardi, Rachel Rokser, Charlotte-Paige Rolle, Adam Rosen, Jeffrey Rosen, Lena R. Freese, María E. Santolaya, Linda M. Schipani, Adam Schwartz, Tiffany Schwasinger-Schmidt, Hyman Scott, Beverly E. Sha, Shivanjali Shankaran, Adrienne E. Shapiro, Stephan C. Sharp, Bo Shopsin, Matthew D. Sims, Stephanie Skipper, Derek M. Smith, Michael J. Smith, M. Mahdee Sobhanie, Brit Sovic, Stephanie Sterling, Robert Striker, Karla Beatriz Tafur Bances, Kawsar R. Talaat, Edward M. Tavel, Jr., Hong V. Tieu, Christian Tomaszewski, Ryan Tomlinson, Juan P. Torres, Julian A. Torres, John J. Treanor, Sade Tukuru, Robert J. Ulrich, Gregory C. Utz, Veronica Viar, Roberto A. Viau Colindres, Edward E. Walsh, Mary C. Walsh, Emmanuel B. Walter, Jessica L. Weidler, Yi H. Wu, Kinara S. Yang, Juan Luis Yrivarren Giorza, Arthur L. Zemanek, Kevin Zhang, Barry S. Zingman, Richard Gorman, Carmen A. Paez, Edith Swann, Simbarashe G. Takuva, Alex Greninger, Pavitra Roychoudhury, Robert W. Coombs, Keith R. Jerome, Flora Castellino, Xiaomi Tong, Corrina Pavetto, Teletha Gipson, Tina Tong, Marina Lee, James Zhou, Michael Fay, Kelly McQuarrie, Chimeremma Nnadi, Obiageli Sogbetun, Nina Ahmad, Ian De Proost, Cyrus Hoseyni, Paul Coplan, Najat Khan, Peter Ronco, Dawn Furey, Jodi Meck, Johan Vingerhoets, Boerries Brandenburg, Jerome Custers, Jenny Hendriks, Jarek Juraszek, Anne Marit de Groot, Griet Van Roey, Dirk Heerwegh, Ilse Van Dromme, Jorge F. Méndez Galván, Monica B. Carrascal, Adriana Sordo Duran, Laura Ruy Sanchez Guerrero, Martha Cecilia Gómora Madrid, Alejandro Quintín Barrat Hernández, Sharzhaad Molina Guizar, Denisse Alejandra González Estrada, Silvano Omar Martínez Pérez, Zindy Yazmín Zárate Hinojosa, Guillermo Miguel Ruiz-Palacios, Aurelio Cruz-Valdez, Janeth Pacheco-Flores, Anyela Lara, Secia Díaz-Miralrio, María José Reyes Fentanes, Jocelyn Zuleica Olmos Vega, Daniela Pineda Méndez, Karina Cano Martínez, Winniberg Stephany Alvarez León, Vida Veronica Ruiz Herrera, Eduardo Gabriel Vázquez Saldaña, Laura Julia Camacho Choza, Karen Sofia Vega Orozco, Sandra Janeth Ortega Domínguez, Jorge A. Chacón, Juan J. Rivera, Erika A. Cutz, Maricruz E. Ortegón, María I. Rivera, David Browder, Cortney Burch, Terri Moye, Paul Bondy, Lesley Browder, Rickey D. Manning, James W. Hurst, Rodney E. Sturgeon, Paul H. Wakefield, John A. Kirby, James Andersen, Szheckera Fearon, Rosa Negron, Amy Medina, John M. Hill, Vivek Rajasekhar, Hayes Williams, LaShondra Cade, Rhodna Fouts, Connie Moya, Corey G. Anderson, Naomi Devine, James Ramsey, Ashley Perez, David Tatelbaum, Michael Jacobs, Kathleen Menasche, Vincent Mirkil, Peter J. Winkle, Amina Z. Haggag, Michelle Haynes, Marysol Villegas, Sabina Raja, Robert Riesenberg, Stanford Plavin, Mark Lerman, Leana Woodside, Maria Johnson, C. Mary Healy, Jennifer A. Whitaker, Wendy A. Keitel, Robert L. Atmar, Gary Horwith, Robin Mason, Lisa Johnson, Tambra Dora, Deborah Murray, Logan Ledbetter, Beverly Ewing, Kathryn E. Stephenson, Chen S. Tan, Rebecca Zash, Jessica L. Ansel, Kate Jaegle, Caitlin J. Guiney, Jeffrey A. Henderson, Marcia O'Leary, Kendra Enright, Jill Kessler, Pete Ducheneaux, Asha Inniss, Donald M. Brandon, William B. Davis, Daniel T. Lawler, Yaa D. Oppong, Ryan P. Starr, Scott N. Syndergaard, Rozeli Shelly, Mashrur Islam Majumder, Danny Sugimoto, Jeffrey Dugas, Sr., Dolores Rijos, Sandra Shelton, Stephan Hong, Howard Schwartz, Nelia Sanchez-Crespo, Jennifer Schwartz, Terry Piedra, Barbara Corral, Carmen Medina, Michael E. Dever, Mitul Shah, Michael Delgado, Tameika Scott, Lisa S. Usdan, Lora J. McGill, Valerie K. Arnold, Carolyn Scatamacchia, Codi M. Anthony, Rajan Merchant, Anelgine C. Yoon, Janet Hill, Lucy Ng-Price, Teri Thompson-Seim, Ronald Ackerman, Jamie Ackerman, Florida Aristy, Nzeera Ketter, Jon Finley, Mildred Stull, Monica Murray, Zainab Rizvi, Sonia Guerrero, Yogesh K. Paliwal, Amit Paliwal, Sarah Gordon, Bryan Gordon, Cynthia Montano-Pereira, Christopher Galloway, Candice Montros, Lily Aleman, Samira Shairi, Wesley Van Ever, George H. Freeman, Esther L. Harmon, Marshall A. Cross, Kacie Sales, Catherine Q. Gular, Matthew Hepburn, Nathan Alderson, Shana Harshell, Siham Mahgoub, Celia Maxwell, Thomas Mellman, Karl M. Thompson, Glenn Wortman, Jeff Kingsley, April Pixler, LaKondria Curry, Sarah Afework, Austin Swanson, Jeffry Jacqmein, Maggie Bowers, Dawn Robison, Victoria Mosteller, Janet Garvey, Mary Easley, Rebecca J. Kurnat, Raymond Cornelison, Shanda Gower, William Schnitz, Destiny S. Heinzig-Cartwright, Derek Lewis, Fred E. Newton, Aeiress Duhart, Breanz Watkins, Brandy Ball, Jill York, Shelby Pickle, David B. Musante, William P. Silver, Linda R. Belhorn, Nicholas A. Viens, David Dellaero, Priti Patel, Kendra Lisec, Beth Safirstein, Luz Zapata, Lazaro Gonzalez, Evelyn Quevedo, Farah Irani, Joseph Grillo, Amy Potts, Julie White, Patrick Flume, Gary Headden, Brandie Taylor, Ashley Warden, Amy Chamberlain, Robert Jeanfreau, Susan Jeanfreau, Paul G. Matherne, Amy Caldwell, Jessica Stahl, Mandy Vowell, Lauren Newhouse, Vladimir Berthaud, Zudi-Mwak Takizala, Genevieve Beninati, Kimberly Snell, Sherrie Baker, James Walker, Tavane Harrison, Meagan Miller, Janet Otto, Roni Gray, Christine Wilson, Tiffany Nemecek, Hannah Harrington, Sally Eppenbach, Wendell Lewis, Tana Bourgeois, Lyndsea Folsom, Gregory Holt, Mehdi Mirsaeidi, Rafael Calderon, Paola Lichtenberger, Jalima Quintero, Becky Martinez, Lilly Immergluck, Erica Johnson, Austin Chan, Norberto Fas, LaTeshia Thomas-Seaton, Saadia Khizer, Jonathan Staben, Tatiana Beresnev, Maryam Jahromi, Mary A. Marovich, Julia Hutter, Martha Nason, Julie Ledgerwood, John Mascola, Mark Leibowitz, Fernanda Morales, Mike Delgado, Rosario Sanchez, Norma Vega, Germán Áñez, Gary Albert, Erin Coston, Chinar Desai, Haoua Dunbar, Mark Eickhoff, Jenina Garcia, Margaret Kautz, Angela Lee, Maggie Lewis, Alice McGarry, Irene McKnight, Joy Nelson, Patrick Newingham, Patty Price-Abbott, Patty Reed, Diana Vegas, Bethanie Wilkinson, Katherine Smith, Wayne Woo, Iksung Cho, Gregory M. Glenn, Filip Dubovsky, David L. Fried, Lynne A. Haughey, Ariana C. Stanton, Lisa Stevens Rameaka, David Rosenberg, Lee Tomatsu, Viviana Gonzalez, Millie Manalo, Bernard Grunstra, Donald Quinn, Phillip Claybrook, Shelby Olds, Amy Dye, Kevin D. Cannon, Mesha M. Chadwick, Bailey Jordan, Morgan Hussey, Hannah Nevarez, Colleen F. Kelley, Michael Chung, Caitlin Moran, Paulina Rebolledo, Christina Bacher, Elizabeth Barranco-Santana, Jessica Rodriguez, Rafael Mendoza, Karen Ruperto, Odette Olivieri, Enrique Ocaña, Paul E. Wylie, Renea Henderson, Natasa Jenson, Fan Yang, Amy Kelley, Kenneth Finkelstein, David Beckmann, Tanya Hutchins, Sebastian Garcia Escallon, Kristen Johnson, Teresa S. Sligh, Parul Desai, Vincent Huynh, Carlos Lopez, Erika Mendoza, Jeffrey Adelglass, Jerome G. Naifeh, Kristine J. Kucera, Waseem Chughtai, Shireen H. Jaffer, Matthew G. Davis, Jennifer Foley, Michelle L. Burgett, Tammi L. Shlotzhauer, Sarah M. Ingalsbe-Geno, Daniel Duncanson, Kelly Kush, Lori Nesbitt, Cora Sonnier, Jennifer McCarter, Michael B. Butcher, James Fry, Donna Percy, Karen Freudemann, Bruce C. Gebhardt, Padma N. Mangu, Debra B. Schroeck, Rajesh K. Davit, Gayle D. Hennekes, Benjamin J. Luft, Melissa Carr, Sharon Nachman, Alison Pellecchia, Candace Smith, Bruno Valenti, Maria I. Bermudez, Noris Peraita, Ernesto Delgado, Alicia Arrazcaeta, Natalie Ramirez, Carmen Amador, Horacio Marafioti, Lyly Dang, Lauren Clement, Jennifer Berry, Mohammed Allaw, Georgettea Geuss, Chelsea Miles, Zachary Bittner, Melody Werne, Cornell Calinescu, Shannon Rodman, Joshua Rindt, Erin Cooksey, Kristina Harrison, Deanna Cooper, Manisha Horton, Amanda Philyaw, William Jennings, Hilario Alvarado, Michele Baka, Malina Regalado, Linda Murray, Sherif Naguib, Justin Singletary, Sha-Wanda Richmond, Sarah Omodele, Emily Oppenheim, Reuben Martinez, Victoria Andriulis, Leonard Singer, Jeanne Blevins, Meagan Thomas, Christine Hull, Isabel Pereira, Gina Rivero, Tracy Okonya, Frances Downing, Paulina Miller, Margaret Rhee, Katherine Stapleton, Jeffrey Klein, Rosamond Hong, Suzanne Swan, Tami Wahlin, Elizabeth Bennett, Amy Salzl, Sharine Phan, Jewel J. White, Amanda Occhino, Ruth Paiano, Morgan McLaughlin, Elisa Swieboda, Veronica Garcia-Fragoso, Maria G. Becerra, Toni White, Christine B. Turley, Andrew McWilliams, Tiffany Esinhart, Natasha Montoya, Shamika Huskey, Leena Paul, Karen Tashima, Jennie Johnson, Marguerite Neill, Martha Sanchez, Natasha Rybak, Maria Mileno, Stuart H. Cohen, Monica Ruiz, Dean M. Boswell, Elizabeth E. Robison, Trina L. Reynolds, Sonja Neumeister, Carmen D. Zorrilla, Juana Rivera, Jessica Ibarra, Iris García, Dianca Sierra, Wanda Ramon, Suzanne Fiorillo, Rebecca Pitotti, Victoria R. Anderson, Jose Castillo Mancilla, Nga Le, Patricia L. Winokur, Dilek Ince, Theresa Hegmann, Jeffrey Meier, Jack Stapleton, Laura Stulken, Monica McArthur, Andrea Berry, Milagritos Tapia, Elizabeth Hammershaimb, Toni Robinson, Rosa MacBryde, Susan Kline, Joanne L. Billings, Winston Cavert, Les B. Forgosh, Timothy W. Schacker, Tyler D. Bold, Dima Dandachi, Taylor Nelson, Andres Bran, Grant Geiger, S. Hasan Naqvi, Diana F. Florescu, Richard Starlin, David Kline, Andrea Zimmer, Anum Abbas, Natasha Wilson, Joseph J. Eron, Michael Sciaudone, A. Lina Rosengren, John S. Kizer, Sarah E. Rutstein, Elizabeth Bruce, Claudia Espinosa, Lisa J. Sanders, Kami Kim, Denise Casey, Barbara S. Taylor, Thomas Patterson, Ruth S. Pinilla, Delia Bullock, Philip Ponce, Jan Patterson, R. Scott McClelland, Dakotah C. Lane, Anna Wald, Frank James, Elizabeth Duke, Kirsten Hauge, Jessica Heimonen, Erin A. Goecker, Youyi Fong, Carol Kauffman, Kathleen Linder, Kimberly Nofz, Andrew McConnell, Robert J. Buynak, Angella Webb, Taryn Petty, Stephanie Andree, Erica Sanchez, Nolan Mackey, Clarisse Baudelaire, Sarah Dzigiel, Adrienna Marquez, Kim Quillin, Michelle King, Vanessa Abad, Jennifer Knowles, Michael Waters, Karla Zepeda, Jordan Coslet, Dalia Tovar, Marian E. Shaw, Mark A. Turner, Cory J. Huffine, Esther S. Huffine, Julie A. Ake, Elizabeth Secord, Eric McGrath, Phillip Levy, Brittany Stewart, Charnell Cromer, Ayanna Walters, Grant Ellsworth, Caroline Greene, Sarah Galloway, Shashi Kapadia, Elliot DeHaan, Clint Wilson, Jason Milligan, Danielle Raley, Joseph Bocchini, Bruce McClenathan, Mary Hussain, Evelyn Lomasney, Evelyn Hall, Sherry Lamberth, Christy Schmeck, Vickie Leathers, Deborah A. Theodore, Angela R. Branche, Daniel S. Graciaa, Timothy J. Hatlen, Jacqueline Miller, Jerald Sadoff, Ann R. Falsey, and Magdalena E. Sobieszczyk

Subjects
COVID-19, Natural infection, Hybrid immunity, Vaccination, Medicine, Medicine (General), R5-920
Abstract

Summary: Background: While vaccines have established utility against COVID-19, phase 3 efficacy studies have generally not comprehensively evaluated protection provided by previous infection or hybrid immunity (previous infection plus vaccination). Individual patient data from US government-supported harmonized vaccine trials provide an unprecedented sample population to address this issue. We characterized the protective efficacy of previous SARS-CoV-2 infection and hybrid immunity against COVID-19 early in the pandemic over three-to six-month follow-up and compared with vaccine-associated protection. Methods: In this post-hoc cross-protocol analysis of the Moderna, AstraZeneca, Janssen, and Novavax COVID-19 vaccine clinical trials, we allocated participants into four groups based on previous-infection status at enrolment and treatment: no previous infection/placebo; previous infection/placebo; no previous infection/vaccine; and previous infection/vaccine. The main outcome was RT-PCR-confirmed COVID-19 >7–15 days (per original protocols) after final study injection. We calculated crude and adjusted efficacy measures. Findings: Previous infection/placebo participants had a 92% decreased risk of future COVID-19 compared to no previous infection/placebo participants (overall hazard ratio [HR] ratio: 0.08; 95% CI: 0.05–0.13). Among single-dose Janssen participants, hybrid immunity conferred greater protection than vaccine alone (HR: 0.03; 95% CI: 0.01–0.10). Too few infections were observed to draw statistical inferences comparing hybrid immunity to vaccine alone for other trials. Vaccination, previous infection, and hybrid immunity all provided near-complete protection against severe disease. Interpretation: Previous infection, any hybrid immunity, and two-dose vaccination all provided substantial protection against symptomatic and severe COVID-19 through the early Delta period. Thus, as a surrogate for natural infection, vaccination remains the safest approach to protection. Funding: National Institutes of Health.

Published
2023
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4. Streptococcus pneumoniae nasal carriage patterns with and without common respiratory virus detections in households in Seattle, WA, USA before and during the COVID-19 pandemic

Author

Julia C. Bennett, Anne Emanuels, Jessica Heimonen, Jessica O'Hanlon, James P. Hughes, Peter D. Han, Eric J. Chow, Constance E. Ogokeh, Melissa A. Rolfes, Christine M. Lockwood, Brian Pfau, Timothy M. Uyeki, Jay Shendure, Samara Hoag, Kairsten Fay, Jover Lee, Thomas R. Sibley, Julia H. Rogers, Lea M. Starita, Janet A. Englund, and Helen Y. Chu

Subjects
streptococcus pneumoniae, pneumococcal, nasal carriage, respiratory, viruses, COVID-19 pandemic, Pediatrics, RJ1-570
Abstract

BackgroundRespiratory viruses might influence Streptococcus pneumoniae nasal carriage and subsequent disease risk. We estimated the association between common respiratory viruses and semiquantitative S. pneumoniae nasal carriage density in a household setting before and during the COVID-19 pandemic.MethodsFrom November 2019–June 2021, we enrolled participants in a remote household surveillance study of respiratory pathogens. Participants submitted weekly reports of acute respiratory illness (ARI) symptoms. Mid-turbinate or anterior nasal swabs were self-collected at enrollment, when ARI occurred, and, in the second year of the study only, from household contacts after SARS-CoV-2 was detected in a household member. Specimens were tested using multiplex reverse-transcription PCR for respiratory pathogens, including S. pneumoniae, rhinovirus, adenovirus, common human coronavirus, influenza A/B virus, respiratory syncytial virus (RSV) A/B, human metapneumovirus, enterovirus, and human parainfluenza virus. We estimated differences in semiquantitative S. pneumoniae nasal carriage density, estimated by the inverse of S. pneumoniae relative cycle threshold (Crt) values, with and without viral detection for any virus and for specific respiratory viruses using linear generalized estimating equations of S. pneumoniae Crt values on virus detection adjusted for age and swab type and accounting for clustering of swabs within households.ResultsWe collected 346 swabs from 239 individuals in 151 households that tested positive for S. pneumoniae (n = 157 with and 189 without ≥1 viruses co-detected). Difficulty breathing, cough, and runny nose were more commonly reported among individuals with specimens with viral co-detection compared to without (15%, 80% and 93% vs. 8%, 57%, and 51%, respectively) and ear pain and headache were less commonly reported (3% and 26% vs. 16% and 41%, respectively). For specific viruses among all ages, semiquantitative S. pneumoniae nasal carriage density was greater with viral co-detection for enterovirus, RSV A/B, adenovirus, rhinovirus, and common human coronavirus (P

Published
2023
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5. Remote Surveillance and Detection of SARS-CoV-2 Transmission Among Household Members in King County, Washington

Author

Julia H. Rogers, Anne Emanuels, Amanda M. Casto, Jessica Heimonen, Jessica O’Hanlon, Eric J. Chow, Constance Ogokeh, Melissa A. Rolfes, Peter D. Han, James P. Hughes, Timothy M. Uyeki, Christian Frazar, Erin Chung, Lea M. Starita, Janet A. Englund, and Helen Y. Chu

Abstract

Background: Early during the COVID-19 pandemic, it was important to better understand transmission dynamics of SARS-CoV-2, the virus that causes COVID-19. Household contacts of infected individuals are particularly at risk for infection, but delays in contact tracing, delays in testing contacts, and isolation and quarantine pose challenges to accurately capturing secondary household cases. Methods: In this study, 346 households in the Seattle region were provided with respiratory specimen collection kits and remotely monitored using web-based surveys for respiratory illness symptoms weekly between October 1, 2020, and June 20, 2021. Symptomatic participants collected respiratory specimens at symptom onset and mailed specimens to the central laboratory in Seattle. Specimens were tested for SARS-CoV-2 using RT-PCR with whole genome sequencing attempted when positive. SARS-CoV-2-infected individuals were notified, and their household contacts submitted specimens every two days for fourteen days. Results: In total, 1,371 participants collected 2,029 specimens that were tested; 16 individuals (1.2%) within 6 households tested positive for SARS-CoV-2 during the study period. Full genome sequences were generated from 11 individuals within 4 households. Very little genetic variation was found among SARS-CoV-2 viruses sequenced from different individuals in the same household, supporting transmission within the household. Conclusions: This study indicates web-based surveillance of respiratory symptoms, combined with rapid and longitudinal specimen collection and remote contact tracing, provides a viable strategy to monitor households and detect household transmission of SARS-CoV-2. Trial Registration Identifier: NCT04141930

Published
2022
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6. 2202. Influenza Surveillance of Families in an Observational Household Study 2019-2021

Author

Tara M Babu, Amanda M Casto, Jessica Heimonen, Yongzhe Wang Wang, Annie Emanuels, Eric J Chow, Samara Hoag, James Hughes, Constance E Ogokeh, Melissa A Rolfes, Timothy M Uyeki, Lea Starita, Janet A Englund, and Helen Y Chu

Subjects
Infectious Diseases, Oncology
Abstract

Background Families with children may be at higher risk for influenza infection. Community transmission can suffer from underreporting as testing is often not performed. We studied the epidemiology of influenza in households with school-aged children using home-based sample collection. Methods We conducted a remote household study surveilling respiratory viruses from November 2019-June 2021, in King County, Washington (WA), USA. Households with school-aged children were enrolled, mailed home specimen collection kits, and asked to self-assess for weekly acute respiratory illness (ARI) using remote survey platforms. Participants with ARI symptoms were prompted to complete serial illness surveys and self-collect/parent collect mid-turbinate nasal swabs. Samples were sent to a University of Washington study laboratory for RT-PCR influenza testing. Influenza rates were compared to WA Department of Health (DOH) reporting. Results A total of 1861 ARI events were reported among 992 adults and 869 children in 470 households; 75 influenza cases were detected (36 influenza A and 39 influenza B). The study participant median age was 32 years (0-84), 10 years (1-49) for influenza A, and 11 years (3-49) for influenza B cases. Overall 13% of households had an influenza case, of which 13 (22%) reported >1 case. A total of 81% of participants reported receipt of one dose of the 2019-2020 influenza vaccine, including 91% of influenza A and 90% of influenza B cases, and 84% received the 2020-2021 influenza vaccine. Like WA DOH, we observed a wave of influenza B cases followed by influenza A in 2019-2020. During influenza season 2020-2021, WA DOH reported 9 positive influenza tests and none observed in our study. Commonly, influenza case-patients reported were fever, cough, rhinorrhea, and fatigue. GI symptoms were more common in children than adults. Of the cases, 92% of influenza A and 78% of influenza B occurred in children. Figure 1.Influenza A and B cases from 2019-2021Figure 2A.Reported Symptoms of Influenza A D0-Day of reported onset, D7-7 days after reported illness onset. No participants >49 years were positive for influenza. D0: 30 participants responded and of respondents, 13% D0-Day of reported onset, D7-7 days after reported illness onset. No participants >49 years were positive for influenza. D0: 28 participants responded and of respondents, 4% Conclusion Influenza illness in 2019-2020 was initially influenza B, and subsequently replaced by influenza A. Most cases were in children and adolescents, despite at least one dose of influenza vaccine. Symptoms were widely distributed and similar between influenza A and B. Influenza incidence in our cohort declined to zero with the rise of SARS-CoV-2 cases and widespread mitigation efforts. Disclosures Janet A. Englund, MD, AstraZeneca: Advisor/Consultant|AstraZeneca: Grant/Research Support|GlaxoSmithKline: Grant/Research Support|Meissa Vaccines: Advisor/Consultant|Merck: Grant/Research Support|Pfizer: Grant/Research Support|Sanofi Pasteur: Advisor/Consultant Helen Y. Chu, MD, MPH, Cepheid: Reagents|Ellume: Advisor/Consultant|Gates Ventures: Grant/Research Support|Merck: Advisor/Consultant|Pfizer: Advisor/Consultant.

Published
2022
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7. 1904. Health Behavioral Trends and Absenteeism Associated with Acute Respiratory Illness Before and During the SARS-CoV-2 Pandemic in a Community Household Cohort, King County, Washington

Author

Erin Chung, Jessica Heimonen, Jessica A O’Hanlon, Yongzhe Wang Wang, Eric J Chow, Constance E Ogokeh, Melissa A Rolfes, James Hughes, Timothy M Uyeki, Lea Starita, Janet A Englund, Helen Y Chu, and Samara Hoag

Subjects
Infectious Diseases, Oncology
Abstract

Background Non-pharmaceutical interventions (NPIs), such as masking and social distancing, can reduce SARS-CoV-2 transmission. Longitudinal behavioral data in individuals with acute respiratory illness (ARI) during the COVID-19 pandemic are limited. We describe changes in adherence to NPIs and the impact of ARIs on work or school in families before and during the COVID-19 pandemic. Methods From November 2019 to June 2021, households with school-aged children in King County, WA, were remotely monitored on a weekly basis for symptoms of respiratory illness. Participants with ARI (cough or ≥2 qualifying symptoms) were asked about illness-related behavior changes (e.g. masking, isolation, hand hygiene, surface cleaning, public transit use) and impacts on school/work 7 days after initial symptom report. Using generalized estimating equations for household clusters, we compared the frequency of behavior changes and school/work impact during 3 time periods: the pre-/early COVID-19 pandemic period (11/14/19-3/22/20), pre-vaccine period (3/23/20-12/10/20), and post-COVID-19 vaccine period (12/11/20-6/19/21). Results Of 1861 participants in 470 households, 695 (37%, from 70% of households) reported 1157 ARIs. Over the 3 time periods, the percent of ill participants who reported staying home (34 vs 34 vs 54%, respectively, P< .001), avoiding contact with others (25 vs 28 vs 45%, P< .001), and masking (3 vs 23 vs 38%, P< .001) increased (Fig 1A). Other illness-related behaviors, including washing hands and disinfecting surfaces, were unchanged over time. The percent of ill participants who worked from home (7 vs 9 vs 3%, P= .02) and missed work due to ARI (13 vs 8 vs 8%, P= .03) decreased over time (Fig 1B). Figure 1A.Participant reported illness-related health behaviors in the past week — Seattle, WA, 2019–2021.Figure 1B.Participant reported illness-related school or work impact in the past week due to illness — Seattle, WA, 2019–2021 Time periods were defined as: Period 1: 11/14/19 – 3/22/20 (pre-/early COVID-19 pandemic), Period 2: 3/23/20 – 12/10/20 (post-Washington State Stay at Home order), and Period 3: 12/11/20 – 6/19/21 (United States Food and Drug Administration Emergency Use Authorization for the Pfizer-BioNTech COVID-19 vaccine for those 16 years and older). Illness was defined per Acute Respiratory Illness (ARI) case definition: cough or two qualifying symptoms (fever, sore throat, runny nose, muscle or body aches, headache, difficulty breathing, fatigue, nausea or vomiting; for participants < 18 years of age, ear pain or drainage, rash, and diarrhea were also qualifying symptoms). Conclusion As the COVID-19 pandemic progressed, households with school-aged children engaged in isolation, social distancing, and masking more frequently in response to ARI. The impact of ARIs on work decreased during the pandemic. Disclosures Janet A. Englund, MD, AstraZeneca: Advisor/Consultant|AstraZeneca: Grant/Research Support|GlaxoSmithKline: Grant/Research Support|Meissa Vaccines: Advisor/Consultant|Merck: Grant/Research Support|Pfizer: Grant/Research Support|Sanofi Pasteur: Advisor/Consultant Helen Y. Chu, MD, MPH, Cepheid: Reagents|Ellume: Advisor/Consultant|Gates Ventures: Grant/Research Support|Merck: Advisor/Consultant|Pfizer: Advisor/Consultant.

Published
2022
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8. A remote household‐based approach to influenza self‐testing and antiviral treatment

Author

Helen Y. Chu, Lea M. Starita, Sean Andrew Parsons, Elisabeth Brandstetter, Jessica Heimonen, Scott Fry, Michael Boeckh, Naomi Wilcox, David McCune, Mark Stewart, James P. Hughes, Timothy M. Uyeki, Anne Emanuels, Janet A. Englund, Jessica O'Hanlon, Ashley E. Kim, Michael L. Jackson, Denise J. McCulloch, and Trevor Bedford

Subjects
Pulmonary and Respiratory Medicine, medicine.medical_specialty, Epidemiology, Influenza epidemics, Telehealth, 030312 virology, Home deliveries, Ellume, Antiviral Agents, Sensitivity and Specificity, 03 medical and health sciences, Health care, Pandemic, Influenza, Human, Medicine, Humans, Medical prescription, Antiviral treatment, Child, Pandemics, baloxavir, 0303 health sciences, treatment, business.industry, Transmission (medicine), Public Health, Environmental and Occupational Health, households, Original Articles, testing, Infectious Diseases, Self-Testing, Emergency medicine, Original Article, business, influenza
Abstract

Background Households represent important settings for transmission of influenza and other respiratory viruses. Current influenza diagnosis and treatment relies upon patient visits to healthcare facilities, which may lead to under‐diagnosis and treatment delays. This study aimed to assess the feasibility of an at‐home approach to influenza diagnosis and treatment via home testing, telehealth care, and rapid antiviral home delivery. Methods We conducted a pilot interventional study of remote influenza diagnosis and treatment in Seattle‐area households with children during the 2019‐2020 influenza season using pre‐positioned nasal swabs and home influenza tests. Home monitoring for respiratory symptoms occurred weekly; if symptoms were reported within 48 hours of onset, participants collected mid‐nasal swabs and used a rapid home‐based influenza immunoassay. An additional home‐collected swab was returned to a laboratory for confirmatory influenza RT‐PCR testing. Baloxavir antiviral treatment was prescribed and delivered to symptomatic and age‐eligible participants, following a telehealth encounter. Results 124 households comprising 481 individuals self‐monitored for respiratory symptoms, with 58 home tests administered. 12 home tests were positive for influenza, of which eight were true positives confirmed by RT‐PCR. The sensitivity and specificity of the home influenza test were 72.7% and 96.2%, respectively. There were eight home deliveries of baloxavir, with 7 (87.5%) occurring within 3 hours of prescription and all within 48 hours of symptom onset. Conclusions We demonstrate the feasibility of self‐testing combined with rapid home delivery of influenza antiviral treatment. This approach may be an important control strategy for influenza epidemics and pandemics.

Published
2021

9. Author response for 'A remote household‐based approach to influenza self‐testing and antiviral treatment'

Author

null Jessica Heimonen, null Denise J. McCulloch, null Jessica O'Hanlon, null Ashley E. Kim, null Anne Emanuels, null Naomi Wilcox, null Elisabeth Brandstetter, null Mark Stewart, null David McCune, null Scott Fry, null Sean Parsons, null James P. Hughes, null Michael L. Jackson, null Timothy M. Uyeki, null Michael Boeckh, null Lea M. Starita, null Trevor Bedford, null Janet A. Englund, and null Helen Y. Chu

Published
2021
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10. A Remote Household-Based Approach to Influenza Self-Testing and Antiviral Treatment

Author

David McCune, Ashley E. Kim, Scott Fry, Denise J. McCulloch, Michael Boeckh, Timothy M. Uyeki, Helen Y. Chu, Jessica O'Hanlon, Anne Emanuels, Naomi Wilcox, Lea M. Starita, Michael L. Jackson, Mark Stewart, Sean Andrew Parsons, James P. Hughes, Janet A. Englund, Elisabeth Brandstetter, Jessica Heimonen, and Trevor Bedford

Subjects
medicine.medical_specialty, Transmission (medicine), business.industry, Emergency medicine, Pandemic, Health care, medicine, Influenza epidemics, Telehealth, Symptom onset, Medical prescription, Antiviral treatment, business
Abstract

BackgroundHouseholds represent important settings for transmission of influenza and other respiratory viruses. Current influenza diagnosis and treatment relies upon patient visits to healthcare facilities, which may lead to under-diagnosis and treatment delays. This study aimed to assess the feasibility of an at-home approach to influenza diagnosis and treatment via home testing, telehealth care, and rapid antiviral home delivery.MethodsWe conducted a pilot interventional study of remote influenza diagnosis and treatment in Seattle-area households with children during the 2019-2020 influenza season using pre-positioned nasal swabs and home influenza tests. Home monitoring for respiratory symptoms occurred weekly; if symptoms were reported within 48 hours of onset, participants collected mid-nasal swabs and used a rapid home-based influenza immunoassay. An additional home-collected swab was returned to a laboratory for confirmatory influenza RT-PCR testing. Baloxavir antiviral treatment was prescribed and delivered to symptomatic and age-eligible participants, following a telehealth encounter.Results124 households comprising 481 individuals self-monitored for respiratory symptoms, with 58 home tests administered. 12 home tests were positive for influenza, of which 8 were true positives confirmed by RT-PCR. The sensitivity and specificity of the home influenza test was 72.7% and 96.2%, respectively. There were 8 home deliveries of baloxavir, with 7 (87.5%) occurring within 3 hours of prescription, and all within 48 hours of symptom onset.ConclusionsWe demonstrate the feasibility of self-testing combined with rapid home delivery of influenza antiviral treatment. This approach may be an important control strategy for influenza epidemics and pandemics.SummaryIn this pilot study, 481 individuals self-monitored for respiratory symptoms. Of 58 home tests, 12 were influenza-positive. There were 8 baloxavir home deliveries within 48 hours of illness onset. A home-based approach to influenza diagnosis and treatment could be feasible.

Published
2021
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11. Incidence of medically attended acute respiratory illnesses due to respiratory viruses across the life course during the 2018/19 influenza season

Author

Melissa Truong, Deborah A. Nickerson, Jessica Heimonen, Helen Y. Chu, Michael L. Jackson, Shari Cho, Anahita Kiavand, C. Hallie Phillips, Stacie Wellwood, Erika Kiniry, Peter D Han, Lea M. Starita, Caitlin R Wolf, and Matthew Richardson

Subjects
0301 basic medicine, Microbiology (medical), Adult, medicine.medical_specialty, Rhinovirus, viruses, 030106 microbiology, Population, medicine.disease_cause, Virus, 03 medical and health sciences, 0302 clinical medicine, Influenza A Virus, H1N1 Subtype, Internal medicine, Influenza, Human, Major Article, Medicine, Humans, Cumulative incidence, 030212 general & internal medicine, Respiratory system, education, Child, Respiratory Tract Infections, Coronavirus, education.field_of_study, Respiratory tract infections, business.industry, SARS-CoV-2, Incidence (epidemiology), Incidence, Influenza A Virus, H3N2 Subtype, virus diseases, COVID-19, Infant, Influenza, Infectious Diseases, AcademicSubjects/MED00290, Respiratory Syncytial Virus, Human, Viruses, Seasons, business, Human
Abstract

Background Although multiple respiratory viruses circulate in humans, few studies have compared the incidence of different viruses across the life course. We estimated the incidence of outpatient illness due to 12 different viruses during November 2018 through April 2019 in a fully enumerated population. Methods We conducted active surveillance for ambulatory care visits for acute respiratory illness (ARI) among members of Kaiser Permanente Washington (KPWA). Enrolled patients provided respiratory swab specimens which were tested for 12 respiratory viruses using reverse transcription polymerase chain reaction (RT-PCR). We estimated the cumulative incidence of infection due to each virus overall and by age group. Results The KPWA population under surveillance included 202 562 individuals, of whom 2767 (1.4%) were enrolled in the study. Influenza A(H3N2) was the most commonly detected virus, with an overall incidence of 21 medically attended illnesses per 1000 population; the next most common viruses were influenza A(H1N1) (18 per 1000), coronaviruses (13 per 1000), respiratory syncytial virus (RSV, 13 per 1000), and rhinovirus (9 per 1000). RSV was the most common cause of medically attended ARI among children aged 1–4 years; coronaviruses were the most common among adults aged ≥65 years. Conclusions Consistent with other studies focused on single viruses, we found that influenza and RSV were major causes of acute respiratory illness in persons of all ages. In comparison, coronaviruses and rhinovirus were also important pathogens. Prior to the emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), coronaviruses were the second-most common cause of medically attended ARI during the 2018/19 influenza season.

Published
2021

12. Evaluating Specimen Quality and Results from a Community-Wide, Home-Based Respiratory Surveillance Study

Author

Elisabeth Brandstetter, Deborah A. Nickerson, Jessica Heimonen, Naomi Wilcox, Kairsten Fay, Peter D Han, Mark J. Rieder, Thomas R. Sibley, Margaret M. Van de Loo, Barry R. Lutz, Lea M. Starita, Misja Ilcisin, Trevor Bedford, Denise J. McCulloch, Jennifer Mooney, Ashley E. Kim, Helen Y. Chu, Michael Boeckh, Rachel E. Geyer, Chelsey Graham, Jover Lee, Janet A. Englund, Victoria Lyon, Matthew Thompson, and Amanda M. Casto

Subjects
0301 basic medicine, Microbiology (medical), medicine.medical_specialty, Surveillance study, Epidemiology, 030106 microbiology, respiratory pathogens, Specimen Handling, 03 medical and health sciences, 0302 clinical medicine, Interquartile range, Influenza, Human, Pandemic, medicine, Humans, 030212 general & internal medicine, Respiratory system, Adverse effect, Pandemics, Respiratory Tract Infections, rapid diagnosis, nasal swab, business.industry, Respiratory pathogen, Home based, Respiratory pathogens, Cross-Sectional Studies, Specimen Quality, Nasal Swab, Emergency medicine, pandemic preparedness, Sample collection, influenza, business
Abstract

While influenza and other respiratory pathogens cause significant morbidity and mortality, the community-based burden of these infections remains incompletely understood. The development of novel methods to detect respiratory infections is essential for mitigating epidemics and developing pandemic-preparedness infrastructure., While influenza and other respiratory pathogens cause significant morbidity and mortality, the community-based burden of these infections remains incompletely understood. The development of novel methods to detect respiratory infections is essential for mitigating epidemics and developing pandemic-preparedness infrastructure. From October 2019 to March 2020, we conducted a home-based cross-sectional study in the greater Seattle, WA, area, utilizing electronic consent and data collection instruments. Participants received nasal swab collection kits via rapid delivery within 24 hours of self-reporting respiratory symptoms. Samples were returned to the laboratory and were screened for 26 respiratory pathogens and a housekeeping gene. Participant data were recorded via online survey at the time of sample collection and 1 week later. Of the 4,572 consented participants, 4,359 (95.3%) received a home swab kit and 3,648 (83.7%) returned a nasal specimen for respiratory pathogen screening. The 3,638 testable samples had a mean RNase P relative cycle threshold (Crt) value of 19.0 (SD, 3.4), and 1,232 (33.9%) samples had positive results for one or more pathogens, including 645 (17.7%) influenza-positive specimens. Among the testable samples, the median time between shipment of the home swab kit and completion of laboratory testing was 8.0 days (interquartile range [IQR], 7.0 to 14.0). A single adverse event occurred and did not cause long-term effects or require medical attention. Home-based surveillance using online participant enrollment and specimen self-collection is a safe and feasible method for community-level monitoring of influenza and other respiratory pathogens, which can readily be adapted for use during pandemics.

Published
2020
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13. Remote Household Observation for Noninfluenza Respiratory Viral Illness

Author

Lea M. Starita, Denise J. McCulloch, Janet A. Englund, Jennifer K. Logue, Helen Y. Chu, Anne Emanuels, James P. Hughes, Timothy M. Uyeki, Michael L. Jackson, Ashley E. Kim, Elisabeth Brandstetter, Peter D Han, Deborah A. Nickerson, Jessica Heimonen, Caitlin R Wolf, Kira L. Newman, Brian Pfau, Naomi Wilcox, Trevor Bedford, Michael Boeckh, and Jessica O'Hanlon

Subjects
0301 basic medicine, Microbiology (medical), medicine.medical_specialty, Longitudinal study, Epidemiology, 030106 microbiology, Respiratory System, Surveillance Methods, Context (language use), medicine.disease_cause, 03 medical and health sciences, 0302 clinical medicine, Environmental health, Pandemic, medicine, Major Article, Transmission, Humans, 030212 general & internal medicine, Longitudinal Studies, Prospective Studies, Child, Respiratory Tract Infections, business.industry, Transmission (medicine), SARS-CoV-2, COVID-19, Households, Infectious Diseases, AcademicSubjects/MED00290, Touch, Respiratory Syncytial Virus, Human, Viruses, Respiratory, Sample collection, Rhinovirus, business
Abstract

Background Noninfluenza respiratory viruses are responsible for a substantial burden of disease in the United States. Household transmission is thought to contribute significantly to subsequent transmission through the broader community. In the context of the coronavirus disease 2019 (COVID-19) pandemic, contactless surveillance methods are of particular importance. Methods From November 2019 to April 2020, 303 households in the Seattle area were remotely monitored in a prospective longitudinal study for symptoms of respiratory viral illness. Enrolled participants reported weekly symptoms and submitted respiratory samples by mail in the event of an acute respiratory illness (ARI). Specimens were tested for 14 viruses, including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), using reverse-transcription polymerase chain reaction. Participants completed all study procedures at home without physical contact with research staff. Results In total, 1171 unique participants in 303 households were monitored for ARI. Of participating households, 128 (42%) included a child aged Conclusions This study highlights the circulation of respiratory viruses within households during the winter months during the emergence of the SARS-CoV-2 pandemic. Contactless methods of recruitment, enrollment, and sample collection were utilized throughout this study and demonstrate the feasibility of home-based, remote monitoring for respiratory infections.

Published
2020

14. Early Detection of Covid-19 through a Citywide Pandemic Surveillance Platform

Author

Christina M. Lockwood, Elisabeth Brandstetter, Deborah A. Nickerson, Jessica Heimonen, Kirsten Lacombe, Michael Boeckh, Lea M. Starita, Peter D Han, Misja Ilcisin, Jay Shendure, Roy Burstein, Thomas R. Sibley, Michael Famulare, Barry R. Lutz, Denise J. McCulloch, Mark J. Rieder, Ashley E. Kim, Helen Y. Chu, Caitlin R Wolf, James P. Hughes, Amanda Adler, Michael L. Jackson, Kairsten Fay, Matthew Thompson, Jennifer K. Logue, Trevor Bedford, Chelsey Graham, Beth Martin, Janet A. Englund, and Jover Lee

Subjects
Washington, 2019-20 coronavirus outbreak, Coronavirus disease 2019 (COVID-19), Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), Pneumonia, Viral, Early detection, 030204 cardiovascular system & hematology, Betacoronavirus, 03 medical and health sciences, 0302 clinical medicine, Correspondence, Pandemic, medicine, Humans, 030212 general & internal medicine, Pandemics, SARS-CoV-2, business.industry, COVID-19, General Medicine, medicine.disease, Multicenter study, Epidemiological Monitoring, Medical emergency, Coronavirus Infections, business
Abstract

Detection of Covid-19 through a Citywide Surveillance Platform The Seattle Flu study, initiated in 2018, mailed kits for home collection of midnasal swabs to people reporting respiratory symptoms. ...

Published
2020
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15. Seattle Flu Study - Swab and Send: Study Protocol for At-Home Surveillance Methods to Estimate the Burden of Respiratory Pathogens on a City-Wide Scale

Author

Kairsten Fay, Jennifer Mooney, Chelsey Graham, Audrey Osterbind, Thomas R. Sibley, Denise J. McCulloch, Margaret M. Van de Loo, Janet A. Englund, Mark J. Rieder, Lea M. Starita, Misja Ilcisin, Peter D Han, Elisabeth Brandstetter, Deborah A. Nickerson, Ashley E. Kim, Jessica Heimonen, Jover Lee, Trevor Bedford, Helen Y. Chu, and Michael Boeckh

Subjects
medicine.medical_specialty, Data collection, business.industry, Nasal Swab, Transmission (medicine), Family medicine, Epidemiology, Pandemic, Medicine, Sample collection, Institutional review board, business, Metropolitan area
Abstract

IntroductionWhile seasonal influenza and other respiratory pathogens cause significant morbidity and mortality each year, the community-based burden of these infections remains incompletely understood. Understanding the prevalence, epidemiology, and transmission dynamics of respiratory pathogen infections among community-dwelling individuals is essential during pandemic and epidemic settings and for developing pandemic-preparedness infrastructure.Methods and AnalysisWe present the protocol for a novel, city-wide home-based cross-sectional study in the Seattle Metropolitan area, utilizing rapid delivery systems for self-collection of a nasal swab and return to the laboratory for respiratory pathogen testing. All participation takes place electronically, including recruitment, consent, and data collection. Within 48 hours of participants self-reporting respiratory symptoms, a nasal swab kit is delivered to the household via a courier service. Demographic and illness characteristics are collected at the time of sample collection and recovery and behavioral information collected one week later. Specimens are tested in the laboratory for multiple respiratory pathogens, and results are available on a public website for participants.Ethics and DisseminationThe study was approved by the University of Washington Institutional Review Board (Protocol #00006181). Results will be disseminated through peer-reviewed publications, talks at conferences, and on the Study Website (www.seattleflu.org).Article SummaryThe findings of this study will inform whether a home-based approach to city-wide respiratory surveillance is possible in epidemic settingsA key strength of this study is that it is conducted across diverse neighborhoods spanning a major metropolitan areaClinical findings may not be generalizable, as they are reliant on self-report (vaccination status, symptoms, healthcare utilization, etc.)

Published
2020
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