1. Infection prevention strategies are highly protective in COVID-19 units while main risks to healthcare professionals come from coworkers and the community
- Author
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Tom Tjoa, Neil Detweiler, Edwin S. Monuki, Sebastian D. Schubl, Susan S. Huang, Philip L. Felgner, Lynn Willis, Wayne Chang, Sherif Rezk, Kathleen A. Quan, Rafael Ramiro de Assis, Antonella Saturno, Shruti K. Gohil, Usme Khusbu, Bridgit Crews, Aarti Jain, Keith M Madey, Donald N. Forthal, William C. Wilson, Cassiana E. Bittencourt, Michael J. Stamos, Robert Edwards, Cesar Figueroa, Lanny Hsieh, Saahir Khan, Suzanne King-Adelsohn, and Delia F. Tifrea
- Subjects
Male ,Infectious Disease Transmission ,Healthcare professional COVID-19 exposure ,Infectious and parasitic diseases ,RC109-216 ,Masking (Electronic Health Record) ,Occupational safety and health ,California ,Disease Outbreaks ,Patient-to-Professional ,Medical microbiology ,Risk Factors ,Medicine ,Infection control ,Pharmacology (medical) ,Academic Medical Centers ,Middle Aged ,COVID-19 seroprevalence ,Community-Acquired Infections ,COVID-19 outbreaks ,Infectious Diseases ,Healthcare worker COVID-19 exposure ,Medical Microbiology ,Regression Analysis ,Female ,Microbiology (medical) ,Adult ,medicine.medical_specialty ,Infectious Disease Transmission, Patient-to-Professional ,Health Personnel ,Clinical Sciences ,Microbiology ,Clinical Research ,Humans ,Socioeconomic status ,Personal protective equipment ,Retrospective Studies ,Infection Control ,business.industry ,Research ,Prevention ,Public Health, Environmental and Occupational Health ,Outbreak ,COVID-19 ,Retrospective cohort study ,Severe acute respiratory syndrome coronavirus-2 ,Cross-Sectional Studies ,Good Health and Well Being ,Family medicine ,Multivariate Analysis ,business - Abstract
BackgroundEarly evaluations of healthcare professional (HCP) COVID-19 risk occurred during insufficient personal protective equipment and disproportionate testing, contributing to perceptions of high patient-care related HCP risk. We evaluated HCP COVID-19 seropositivity after accounting for community factors and coworker outbreaks.MethodsPrior to universal masking, we conducted a single-center retrospective cohort plus cross-sectional study. All HCP (1) seen by Occupational Health for COVID-like symptoms (regardless of test result) or assigned to (2) dedicated COVID-19 units, (3) units with a COVID-19 HCP outbreak, or (4) control units from 01/01/2020 to 04/15/2020 were offered serologic testing by an FDA-authorized assay plus a research assay against 67 respiratory viruses, including 11 SARS-CoV-2 antigens. Multivariable models assessed the association of demographics, job role, comorbidities, care of a COVID-19 patient, and geocoded socioeconomic status with positive serology.ResultsOf 654 participants, 87 (13.3%) were seropositive; among these 60.8% (N = 52) had never cared for a COVID-19 patient. Being male (OR 1.79, CI 1.05–3.04,p = 0.03), working in a unit with a HCP-outbreak unit (OR 2.21, CI 1.28–3.81,p p = 0.05), and ethnically Latino (OR 2.10, CI 1.12–3.96,p = 0.02) were positively-associated with COVID-19 seropositivity, while working in dedicated COVID-19 units was negatively-associated (OR 0.53, CI = 0.30–0.94,p = 0.03). The research assay identified 25 additional seropositive individuals (78 [12%] vs. 53 [8%],p ConclusionsPrior to universal masking, HCP COVID-19 risk was dominated by workplace and community exposures while working in a dedicated COVID-19 unit was protective, suggesting that infection prevention protocols prevent patient-to-HCP transmission.Article summaryPrior to universal masking, HCP COVID-19 risk was dominated by workplace and community exposures while working in a dedicated COVID-19 unit was protective, suggesting that infection prevention protocols prevent patient-to-HCP transmission.
- Published
- 2021