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1. Characterization of variation in the lignan content and composition of winter rye, spring wheat, and spring oat.

Author

Smeds AI, Jauhiainen L, Tuomola E, and Peltonen-Sainio P

Subjects
Avena genetics, Environment, Genotype, Secale genetics, Seeds anatomy & histology, Seeds chemistry, Triticum genetics, Avena chemistry, Lignans analysis, Seasons, Secale chemistry, Triticum chemistry
Abstract

To characterize the range of variation in lignan content and composition caused by genotype and environment, seven dietary lignans, i.e., 7-hydroxymatairesinol, secoisolariciresinol, matairesinol, lariciresinol, pinoresinol, medioresinol, and syringaresinol, were analyzed by high-performance liquid chromatography-tandem mass spectrometry in whole-grain extracts of cereal samples collected at eight locations in Finland. In all, 28 winter rye, 73 spring wheat, and 55 spring oat samples were analyzed, representing 6, 9, and 5 cultivars, respectively. The total lignan content showed huge variations within the same cereal species: the range was 2500-6700 microg/100 g in the rye samples, 340-2270 microg/100 g in the wheat samples, and 820-2550 microg/100 g in the oat samples. The variations seemed to depend largely upon genetic differences. In rye, also environmental conditions affected the lignan content through grain size; smaller grains had significantly lower total lignan, syringaresinol, and lariciresinol content than larger grains. This study shows that varying cereal lignan concentrations reported in different studies may be, besides differences in analytical methods, largely dependent upon natural variations.

Published
2009
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2. Correlating Indoor and Outdoor Temperature and Humidity in a Sample of Buildings in Tropical Climates

Author

Linsey C. Marr, Miguela A. Caniza, Hong Kai Lee, Alejandra Nava Ruiz, Yuguo Li, Julian Tang, Chun Kiat Lee, Carlos Francisco Santillan-Salas, Jean-Michel Heraud, Jin Pan, Evelyn Siew-Chuan Koay, Virginia Tech [Blacksburg], University of Leicester, St Jude Children's Research Hospital, Unité de Virologie [Antananarivo, Madagascar] (IPM), Institut Pasteur de Madagascar, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP), National University of Singapore (NUS), Agency for science, technology and research [Singapore] (A*STAR), National University Health System [Singapore] (NUHS), The University of Hong Kong (HKU), Hospital de Especialidades Pediátricas, Instituto Nacional de Salud del Niño San Borja, This research was supported by a grant from the Alfred P. Sloan Foundation as part of its Microbiology of the Built Environment program. The authors thank Kaisen Lin for helpful discussions, Julia Gohlke, Archit Manuja, and AJ Prussin II for handling sensors, and and the reviewers for their detailed feedback that helped strengthen this paper.

Subjects
Wet season, bepress|Engineering|Civil and Environmental Engineering|Environmental Engineering, Environmental Engineering, 010504 meteorology & atmospheric sciences, bepress|Engineering, 010501 environmental sciences, Atmospheric sciences, 01 natural sciences, complex mixtures, outdoor, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, engrXiv|Engineering|Civil and Environmental Engineering, medicine, Temperate climate, Relative humidity, indoor, climate, 0105 earth and related environmental sciences, Tropical Climate, [SDV.MHEP.ME]Life Sciences [q-bio]/Human health and pathology/Emerging diseases, engrXiv|Engineering|Civil and Environmental Engineering|Environmental Engineering, business.industry, Public Health, Environmental and Occupational Health, humidity, Humidity, Tropics, temperature, [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology, Building and Construction, Seasonality, medicine.disease, respiratory virus, engrXiv|Engineering, bepress|Engineering|Civil and Environmental Engineering, 13. Climate action, Air conditioning, Air Pollution, Indoor, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, Respiratory virus, Environmental science, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Seasons, business
Abstract

Posté sur engrXiv le 13 juin 2021.; The incidence of several respiratory viral infections has been shown to be related to climate. Because humans spend most of their time indoors, measures of indoor climate, rather than outdoor climate, may be better predictors of disease incidence and transmission. Therefore, understanding the relationship between indoor and outdoor climate will help illuminate their influence on the seasonality of diseases caused by respiratory viruses. Indoor-outdoor relationships between temperature and humidity have been documented in temperate regions, but little information is available for tropical regions, where seasonal patterns of respiratory viral diseases differ. We have examined indoor-outdoor correlations of temperature, relative humidity (RH), and absolute humidity (AH) over a 1-year period in each of seven tropical cities. Across all cities, the average monthly indoor temperature was 25±3°C (mean ± standard deviation) with a range of 20–30°C. The average monthly indoor RH was 669% with a range of 50–78%, and the average monthly indoor AH was 153 g/m3 with a range of 10–23 g/m3. Indoor AH and RH were linearly correlated with outdoor AH when the air-conditioning (AC) was off, suggesting that outdoor AH may be a good proxy of indoor humidity in the absence of AC. All indoor measurements were more strongly correlated with outdoor measurements as distance from the equator increased. Such correlations were weaker during the wet season, especially when AC was in operation. These correlations will provide insight for assessing the seasonality of respiratory viral infections using outdoor climate data, which is more widely available than indoor data, even though transmission of these diseases mainly occurs indoors.

Published
2021
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3. Risk factors for bronchiolitis hospitalization in infants: A French nationwide retrospective cohort study over four consecutive seasons (2009-2013)

Author

Jean-Christophe Rozé, Jean-Michel Hascoet, Jean-François Magny, Pierre-Henri Jarreau, Brigitte Fauroux, Elie Saliba, Michaël Schwarzinger, Sommeil-Vigilance-Fatigue et Santé Publique (VIFASOM (URP_7330)), Institut de Recherche Biomédicale des Armées (IRBA)-Université Paris Cité (UPCité), Unité Pédiatrique de Ventilation Non Invasive et de Sommeil [CHU Necker Enfants-Malades], CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Maternité Régionale Adolphe Pinard [Nancy], Développement, Adaptation et Handicap. Régulations cardio-respiratoires et de la motricité (DevAH), Université de Lorraine (UL), Université Paris Cité (UPCité), Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre hospitalier universitaire de Nantes (CHU Nantes), Physiopathologie des Adaptations Nutritionnelles (PhAN), Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Infection, Anti-microbiens, Modélisation, Evolution (IAME (UMR_S_1137 / U1137)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité)-Université Sorbonne Paris Nord, Translational Health Economics Network [Paris] (THEN), Sorbonne Université (SU), The present study was supported by AbbVie France. Translational Health Economics (THEN) was responsible for data collection, preparation, and validation with external sources of information. THEN received payment from AbbVie for these activities. Writing charges were funded by AbbVie France, and AbbVie approved the decision to submit the paper for publication, but the corresponding author was ultimately responsible for submitting the manuscript for publication., HASCOET, JEAN-MICHEL, Service d'assistance respiratoire et sommeil de l'enfant [CHU Necker], Sommeil-Vigilance-Fatigue et Santé Publique (VIFASOM - EA 7330), Institut de Recherche Biomédicale des Armées (IRBA)-Université de Paris (UP), Regional Maternity [Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Université de Lorraine (UL), Université de Paris (UP), Department of Neonatal Medicine of Port-Royal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Cochin [AP-HP], Neonatal Intensive Care Unit of Port-Royal [Paris], Department of Neonatology [Paris], Department of Neonatology [Nantes], Department of Neonatology [Tours], Hôpital Gatien de Clocheville [Tours], Centre Hospitalier Régional Universitaire de Tours (CHRU Tours)-Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP)-Université Sorbonne Paris Nord, Université Paris Diderot - Paris 7 (UPD7), Université Sorbonne Paris Cité (USPC), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP)-Université Sorbonne Paris Nord, and Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS)

Subjects
Male, Pediatrics, Pulmonology, Epidemiology, Physiology, Cell Transplantation, Comorbidity, [SDV.MHEP.PSR]Life Sciences [q-bio]/Human health and pathology/Pulmonology and respiratory tract, Families, 0302 clinical medicine, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Medicine and Health Sciences, Morphogenesis, Blood and Lymphatic System Procedures, Birth Weight, 030212 general & internal medicine, Children, education.field_of_study, Multidisciplinary, Congenital Heart Defects, Hospitals, 3. Good health, Hospitalization, Physiological Parameters, [SDV.MHEP.MI] Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Bronchiolitis, Medicine, Female, France, Seasons, Infants, Research Article, medicine.medical_specialty, Down syndrome, Science, Population, Cardiology, Surgical and Invasive Medical Procedures, 03 medical and health sciences, [SDV.MHEP.PED] Life Sciences [q-bio]/Human health and pathology/Pediatrics, 030225 pediatrics, Internal medicine, Congenital Disorders, medicine, Humans, Birth Defects, education, Transplantation, [SDV.MHEP.PED]Life Sciences [q-bio]/Human health and pathology/Pediatrics, Omphalocele, business.industry, Body Weight, Infant, Biology and Life Sciences, Retrospective cohort study, medicine.disease, Health Care, Bronchopulmonary dysplasia, Age Groups, Health Care Facilities, [SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, Medical Risk Factors, People and Places, Respiratory Infections, [SDV.MHEP.PSR] Life Sciences [q-bio]/Human health and pathology/Pulmonology and respiratory tract, Population Groupings, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, business, Developmental Biology, Stem Cell Transplantation
Abstract

International audience; Objectives: Large studies are needed to update risk factors of bronchiolitis hospitalization. We performed a nationwide analysis of hospitalization rates for bronchiolitis over four consecutive bronchiolitis seasons to identify underlying medical disorders at risk of bronchiolitis hospitalization and assess their frequency.Methods: Data were retrieved from the French National Hospital Discharge database. Of all infants discharged alive from maternity wards from January 2008 to December 2013 in France (N = 3,884,791), we identified four consecutive cohorts at risk of bronchiolitis during the seasons of 2009–2010 to 2012–2013. The main outcome was bronchiolitis hospitalization during a season. Individual risk factors were collected.Results: Among infants, 6.0% were preterm and 2.0% had ≥1 chronic condition including 0.2% bronchopulmonary dysplasia (BPD) and 0.2% hemodynamically significant congenital heart disease (HS-CHD). Bronchiolitis hospitalization rates varied between seasons (min: 1.26% in 2010–2011; max: 1.48% in 2012–2013; p

Published
2020
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4. Integrated Analysis of Environment, Cattle and Human Serological Data: Risks and Mechanisms of Transmission of Rift Valley Fever in Madagascar

Author

Annelise Tran, Vladimir Grosbois, Jean-Pierre Ravalohery, Fanjasoa Rakotomanana, Jean-Michel Heraud, Soa Fy Andriamandimby, Christophe Rogier, Seta Andriamamonjy, Véronique Chevalier, Benoit Durand, Marie-Marie Olive, Animal et gestion intégrée des risques (UPR AGIRs), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Unité de Virologie [Antananarivo, Madagascar] (IPM), Institut Pasteur de Madagascar, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP), Laboratoire de santé animale, sites de Maisons-Alfort et de Dozulé, Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Réseau International des Instituts Pasteur (RIIP), This study was supported in part by funds raised by (i) CIRAD (ii) the Centre National d'Etudes Spatiales (CNES, grant # 131163/00) (iii) the Institut Pasteur de Madagascar. Human field work was funded by the Institut Pasteur of Madagascar (Internal Project through the ZORA (ZOonoses, Rodent and Arboviruses) project and the Centers for Disease Control and Prevention (CDC, and Cooperative Agreement #U51/IP000327). Moreover, this material is based upon work supported by the U. S. Department of Homeland Security under the Center of Excellence of Emerging and Zoonotic Animal Diseases Grant Award Number 2010-ST061-AG0001. Cattle study was supported in part by funds raised by World Health Organization (WHO) and the Food and Agriculture Organization of the United Nations (FAO) through the Central Emergency Response Fund of the United Nations. The views and conclusions contained in this paper are those of the authors and should not be interpreted as necessarily representing the official policies, either explicit or implicit, of the U. S. Department of Homeland Security. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Subjects
Veterinary medicine, Epidemiology, Pathology and Laboratory Medicine, law.invention, 0302 clinical medicine, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Analyse du risque, MESH: Cattle Diseases, MESH: Animals, Neglected tropical diseases, Mammals, [SDV.MHEP.ME]Life Sciences [q-bio]/Human health and pathology/Emerging diseases, MESH: Middle Aged, 000 - Autres thèmes, Fièvre de la Vallée du Rift, Anopheles, Ruminants, 3. Good health, Transmission (mechanics), MESH: Young Adult, Densité de population, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, Enzootic, Infectious diseases, L72 - Organismes nuisibles des animaux, Genre humain, Bétail, Livestock, lcsh:RC955-962, MESH: Culex, Microbiology, MESH: Anopheles, 03 medical and health sciences, MESH: Cross-Sectional Studies, Madagascar, MESH: Humans, MESH: Seroepidemiologic Studies, Tropical diseases, Public Health, Environmental and Occupational Health, Organisms, lcsh:RA1-1270, MESH: Adult, [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology, 15. Life on land, medicine.disease, Invertebrates, Insect Vectors, 030104 developmental biology, Africa, Cattle, MESH: Female, MESH: Antibodies, Viral, 0301 basic medicine, RNA viruses, Cattle Diseases, Disease Vectors, L73 - Maladies des animaux, Mosquitoes, Serology, Geographical Locations, MESH: Madagascar, law, Zoonoses, Facteur de risque, Bunyaviruses, Medicine and Health Sciences, MESH: Rift Valley Fever, Comportement humain, Rift Valley fever, 2. Zero hunger, biology, lcsh:Public aspects of medicine, Agriculture, Facteur du milieu, Medical microbiology, Insects, MESH: Cattle, Vecteur de maladie, Vertebrates, Viruses, MESH: Rift Valley fever virus, Seasons, Pathogens, Research Article, lcsh:Arctic medicine. Tropical medicine, Zone humide, Arthropoda, Distribution géographique, Culex, 030231 tropical medicine, Viral diseases, MESH: Insect Vectors, Virus de la fièvre de la vallée du Rift, Sérologie, Bovines, medicine, Seroprevalence, Animals, MESH: Environment, Transmission des maladies, Biology and life sciences, Viral pathogens, Morbidité, biology.organism_classification, Rift Valley fever virus, MESH: Male, Microbial pathogens, Amniotes, People and Places, Earth Sciences, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie
Abstract

Background Rift Valley fever (RVF) is a vector-borne disease affecting ruminants and humans. Madagascar was heavily affected by RVF in 2008–2009, with evidence of a large and heterogeneous spread of the disease. The identification of at-risk environments is essential to optimize the available resources by targeting RVF surveillance in Madagascar. Herein, the objectives of our study were: (i) to identify the environmental factors and areas favorable to RVF transmission to both cattle and human and (ii) to identify human behaviors favoring human infections in Malagasy contexts. Methodology/Principal Findings First, we characterized the environments of Malagasy communes using a Multiple Factor Analysis (MFA). Then, we analyzed cattle and human serological data collected at national level using Generalized Linear Mixed Models, with the individual serological status (cattle or human) as the response, and MFA factors, as well as other potential risk factors (cattle density, human behavior) as explanatory variables. Cattle and human seroprevalence rates were positively associated to humid environments (p, Author Summary Rift Valley fever virus (RVFV) is a pathogen that causes a vector-borne tropical disease. The disease affects ruminants and humans and severely impacts the health and economy of affected countries. Madagascar was heavily affected by Rift Valley fever (RVF) in 2008–2009, with evidence of a large and heterogeneous spread of the disease. Our study aims at identifying environmental and human-related risk factors for RVFV transmission. First, we characterized Malagasy environments according to their putative influence on RVFV mosquito density and population dynamics. Then we statistically analyzed cattle and human serological data collected at a national level with the individual serological status as response, and Malagasy environments previously characterized by climatic and landscape variables as well as other potential risk factors as explanatory variables. Our results identified humid environments of the western, north-western and eastern parts of the island as risky areas. The identification of at-risk environments is essential to focus veterinary surveillance and control of RVFV.

Published
2016
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5. Temporal Patterns of Influenza A and B in Tropical and Temperate Countries: What Are the Lessons for Influenza Vaccination?

Author

Marietjie Venter, Juan Yang, Simona Puzelli, Antonino Bella, Joshua A. Mott, Rodrigo Fasce, Coulibaly Daouda, Jenny Lara, Hongjie Yu, Winston Andrade, Selim Badur, Cláudio Maierovitch Pessanha Henriques, François G. Schellevis, Jean-Michel Heraud, Akerke Ospanova, Sonam Wangchuk, Brechla Moreno, Herve A. Kadjo, Raymond T. P. Lin, Juan Manuel Rudi, Walquiria Aparecida Ferreira de Almeida, Gabriela Kusznierz, Joseph S. Bresee, Cheryl Cohen, Mai thi Quynh Le, Rhonda Owen, Maria Zambon, Maria Luisa Matute, Kunzang Dorji, Kate Pennington, Global Influenza B Study, Herman Kosasih, Nurhayati, Alla Mironenko, Ming Li, Angel Balmaseda, Alexey Clara, Alfredo Bruno, Richard Njouom, Phuong Vu Mai Hoang, Ana Paula Rodrigues, Celina de Lozano, Luzhao Feng, Olha Holubka, Amal Barakat, Lyazzat Kiyanbekova, Norosoa Harline Razanajatovo, Saverio Caini, Meral Akcay Ciblak, Raquel Guiomar, Richard Pebody, Leticia Castillo, Gideon O. Emukule, Liza Lopez, Doménica de Mora, Jeffery Cutter, Q. Sue Huang, Marie-Astrid Vernet, Abderrahman Bimohuen, John Paget, Lynnette Brammer, General practice, EMGO - Quality of care, Netherlands Institute for Health Services Research, Instituto de Salud Pública de Chile (ISP), Istanbul University, Ministry of Health [Nicaragua] (MINSA), Ministry of Health [Morocco], Istituto Superiore di Sanita [Rome], Centers for Disease Control and Prevention [Atlanta] (CDC), Centers for Disease Control and Prevention, Instituto Nacional de Investigación en Salud Pública [Guayaquil, Ecuador] (INSPI), Ministerio de Salud Publica y Asistencia Social [Guatemala] (MSPAS), US Centers for Disease Control, University of the Witwatersrand [Johannesburg] (WITS), Ministry of Health, Institut Pasteur de Côte d'Ivoire, Réseau International des Instituts Pasteur (RIIP), Ministerio de Salud de El Salvador (MINSAL), Ministry of Health [Bhoutan], US Centers for Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Instituto nacional de saude, Unité de Virologie [Antananarivo, Madagascar] (IPM), Institut Pasteur de Madagascar, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP), National Academy of Medical Sciences of Ukraine, Institute of Environmental Science and Research (ESR), Astana Center of Sanitary Epidemiology Expertise, US Naval Medical Research Unit n°2, Instituto Nacional de Enfermedades Respiratorias 'Dr. Emilio Coni', Ministry of Health [Costa Rica], National Institute of Hygiene and Epidemiology [Hanoi, Vietnam] (NIHE), Ministry of Health [Honduras] (SESAL), National Influenza Center, Centre Pasteur du Cameroun, Office of Health Protection, Woden, ACT, Australia (DHAISS), Public Health England [London], National Institute of Health, University of Pretoria [South Africa], The Global Influenza B Study is supported by an unrestricted research grant from Sanofi Pasteur. The study sponsor had no role in the design of the study, in the collection, analysis, and interpretation of data, in the writing of the report, and and in the decision to submit the paper for publication. The corresponding author had full access to all the data in the study and had final responsibility for the decision to submit for publication. The study sponsor had no access to the data in the study.

Subjects
Infecções Respiratórias, Influenza Viruses, Epidemiology, Gripe, Pathology and Laboratory Medicine, Geographical locations, 0302 clinical medicine, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, DRIVERS, Estados de Saúde, Public and Occupational Health, SUB-SAHARAN AFRICA, lcsh:Science, MESH: Influenza B virus, Northern Hemisphere, [SDV.MHEP.ME]Life Sciences [q-bio]/Human health and pathology/Emerging diseases, Geography, MESH: Influenza, Human, Vaccination, virus diseases, 3. Good health, Global Influenza B Study, MESH: Tropical Climate, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, Science & Technology - Other Topics, Immunology, Disease Surveillance, SEASONAL INFLUENZA, Microbiology, Influenza Vaccin, 03 medical and health sciences, Influenza Vaccination, SURVEILLANCE, Humans, Microbial Pathogens, Retrospective Studies, MESH: Humans, Science & Technology, lcsh:R, Organisms, Correction, Influenza a, MESH: Retrospective Studies, [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology, medicine.disease, Virology, Influenza, MADAGASCAR, lcsh:Q, Preventive Medicine, People and places, Demography, RNA viruses, Viral Diseases, lcsh:Medicine, medicine.disease_cause, Tropical climate, Medicine and Health Sciences, Influenza A virus, 030212 general & internal medicine, Multidisciplinary, Medical microbiology, Vaccination and Immunization, Multidisciplinary Sciences, Infectious Diseases, Viruses, Human mortality from H5N1, Southern Hemisphere, Seasons, Pathogens, Brazil, Research Article, Infectious Disease Control, General Science & Technology, 030231 tropical medicine, MESH: Influenza A virus, Healthcare improvement science Radboud Institute for Health Sciences [Radboudumc 18], MD Multidisciplinary, Influenza, Human, Temperate climate, medicine, Tropical Climate, Biology and life sciences, business.industry, Other Research Radboud Institute for Health Sciences [Radboudumc 0], Viral pathogens, Tropics, MESH: Vaccination, South America, Seasonality, Earth sciences, Influenza B virus, Infectious Disease Surveillance, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, business, Geographic areas, MESH: Seasons, Orthomyxoviruses
Abstract

Erratum in - Correction: Temporal Patterns of Influenza A and B in Tropical and Temperate Countries: What Are the Lessons for Influenza Vaccination? PLoS One. 2016 May 2;11(5):e0155089. doi: 10.1371/journal.pone.0155089. Introduction: Determining the optimal time to vaccinate is important for influenza vaccination programmes. Here, we assessed the temporal characteristics of influenza epidemics in the Northern and Southern hemispheres and in the tropics, and discuss their implications for vaccination programmes. Methods: This was a retrospective analysis of surveillance data between 2000 and 2014 from the Global Influenza B Study database. The seasonal peak of influenza was defined as the week with the most reported cases (overall, A, and B) in the season. The duration of seasonal activity was assessed using the maximum proportion of influenza cases during three consecutive months and the minimum number of months with 80% of cases in the season. We also assessed whether co-circulation of A and B virus types affected the duration of influenza epidemics. Results: 212 influenza seasons and 571,907 cases were included from 30 countries. In tropical countries, the seasonal influenza activity lasted longer and the peaks of influenza A and B coincided less frequently than in temperate countries. Temporal characteristics of influenza epidemics were heterogeneous in the tropics, with distinct seasonal epidemics observed only in some countries. Seasons with co-circulation of influenza A and B were longer than influenza A seasons, especially in the tropics. Discussion: Our findings show that influenza seasonality is less well defined in the tropics than in temperate regions. This has important implications for vaccination programmes in these countries. High-quality influenza surveillance systems are needed in the tropics to enable decisions about when to vaccinate. The Global Influenza B Study is supported by an unrestricted research grant from Sanofi Pasteur. info:eu-repo/semantics/publishedVersion

Published
2016
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6. Prey sex pheromone as kairomone for a new group of predators (Coleoptera: Dasytidae, Aplocnemus spp.) of pine bast scales

Author

R. Constantin, José Carlos Franco, Manuela Branco, Hervé Jactel, I. van Halder, Universidade Técnica de Lisboa, Biodiversité, Gènes & Communautés (BioGeCo), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB), Independent, and We want to thank Pierre Menassieu, Fabrice Vetillard and the French Forest Health Department for their help with the field work in Corsica, and Catarina Sousa, Maria Bernat, Filipa Martins, Catia Figueiredo and Joana Fernandes for their help with the field work in Portugal. Gianfranco Liberti helped us by sending several papers on the ecology and biology of Aplocnemus species. We are grateful to Martine Lettere, from the Unit of Phytopharmacy and Chemical Mediators, INRA, Versailles (France) for supplying M. feytaudi pheromone lures. This work was partially supported by FCT - Fundacao para Ciencia e Tecnologia (Portugal) through the Pluriannual Program. The study in Corsica was supported by the French Ministry of Agriculture and the Regional Community of Corsica.

Subjects
0106 biological sciences, Male, matsucoccus, media_common.quotation_subject, [SDV]Life Sciences [q-bio], Insect, entomology, 010603 evolutionary biology, 01 natural sciences, Predation, Hemiptera, prey searching, Animals, Sex Attractants, Ecosystem, media_common, Larva, biology, Portugal, Ecology, business.industry, kairomone, Pest control, General Medicine, Feeding Behavior, biology.organism_classification, aplocnemus, Pinus, Coleoptera, 010602 entomology, Dodecanol, Insect Science, Kairomone, Sex pheromone, Predatory Behavior, Pheromone, Female, France, Seasons, business, dasytidae, Agronomy and Crop Science
Abstract

During the last decades, an increasing number of predators were found to use specific prey pheromones as chemical cues. Beyond its ecological relevance, this knowledge has practical applications on insect conservation and pest control. In this study, we present first evidence that two species of the family Dasytidae (Coleoptera)Aplocnemus brevisRosenhauer andA. raymondiSainte-Claire Deville use the sex pheromone of the pine bast scaleMatsucoccus feytaudiDucasse (Hemiptera: Matsucoccidae) as kairomone to locate this prey. The feeding habits and biology ofAplocnemusspecies are practically unknown. In the laboratory, the adults ofAplocnemussp. acceptedM. feytaudiegg masses as food source as well as other diets. Females represented more than 90% ofAplocnemussp. attracted to the pheromone lures. We believe that females use this olfactory cue to locate suitable places for oviposition and that larvae are the predators ofMatsucoccus. This study further demonstrates that the response to the kairomone elicited short prey searching times, about 23% of the individuals appeared less than 12 min after lure exposure, being consistent with the hypothesis of prey specialization. Habitat and geographical distribution predict an ancestral association ofA. breviswithM. feytaudiand ofA. raymondiwithM. pini. Nevertheless, a recent prey shift ofA. raymondito the invasiveM. feytaudiin Corsica is in progress.

Published
2011
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