Titre :
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The Serial Intervals of Seasonal and Pandemic Influenza Viruses in Households in Bangkok, Thailand (2013)
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Auteurs :
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Jens-W LEVY ;
Influenza Program and International Emerging Infections Program, Thailand Ministry of Public Health-Us Centers for Disease Control and Prevention Collaboration (Nonthaburi, Thaïlande) ;
Benjamin-J COWLING ;
Department of Community Medicine, The University of Hong Kong (Hong Kong Special Administrative Region, Chine) ;
James-M SIMMERMAN ;
Influenza Division, Centers for Disease Control and Prevention (Atlanta, Géorgie) ;
Sonja-J OLSEN ;
Vicky-J FANG ;
Department of Pediatrics, Queen Sirikit National Institute of Child Health (Bangkok, Thaïlande) ;
Piyarat SUNTARATTIWONG ;
Richard-G JARMAN ;
Brendan KLICK ;
Tawee CHOTIPITAYASUNONDH
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Type de document :
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Article
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Dans :
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American journal of epidemiology (vol. 177, n° 12, 2013)
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Pagination :
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1443-1451
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Langues:
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Anglais
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Mots-clés :
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Variation saisonnière
;
Grippe
;
Ménage
;
Thaïlande
;
Homme
;
Epidémiologie
;
Virose
;
Infection
;
Asie
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Résumé :
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[BDSP. Notice produite par INIST-CNRS R0xqlnnF. Diffusion soumise à autorisation]. The serial interval (SI) of human influenza virus infections is often described by a single distribution. Understanding sources of variation in the SI could provide valuable information for understanding influenza transmission dynamics. Using data from a randomized household study of nonpharmaceutical interventions to prevent influenza transmission in Bangkok, Thailand, over 34 months between 2008 and 2011, we estimated the influence of influenza virus type/subtype and other characteristics of 251 pediatric index cases and their 315 infected household contacts on estimates of household SI. The mean SI for all households was 3.3 days. Relative to influenza A (H1N1) pdm09 (3.1 days), the SI for influenza B (3.7 days) was 22% longer (95% confidence interval : 4,43), or about half a day. The SIs for influenza viruses A (H1N1) and A (H3N2) were similar to that for A (H1N1) pdm09. SIs were shortest for older index cases (age 11-14 years) and for younger infected household contacts (age
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