Secondary household transmission of 2009 pandemic influenza A (H1N1) virus among an urban and rural population in Kenya, 2009-2010

In Kenya, >1,200 laboratory-confirmed 2009 pandemic influenza A (H1N1) (pH1N1) cases occurred since June 2009. We used population-based infectious disease surveillance (PBIDS) data to assess household transmission of pH1N1 in urban Nairobi (Kibera) and rural Lwak. We defined a pH1N1 patient as la...

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Bibliographic Details
Published in:PloS one 2012-06, Vol.7 (6), p.e38166-e38166
Main Authors: Kim, Clara Y, Breiman, Robert F, Cosmas, Leonard, Audi, Allan, Aura, Barrack, Bigogo, Godfrey, Njuguna, Henry, Lebo, Emmaculate, Waiboci, Lilian, Njenga, M Kariuki, Feikin, Daniel R, Katz, Mark A
Format: Article
Language:English
Subjects:
Age
Analysis
Biology
Children
Clinical trials
Community participation
Confidence intervals
Cough
Disease control
Disease prevention
Disease transmission
Diseases
Epidemics
Family Characteristics
Fever
Health aspects
Households
Humans
Illnesses
Immunization
Infectious diseases
Influenza
Influenza A
Influenza A Virus, H1N1 Subtype
Influenza, Human - epidemiology
Influenza, Human - transmission
Information services
Kenya - epidemiology
Malaria
Medical laboratories
Medical research
Medicine
Models, Statistical
Odds Ratio
Pandemics
Pandemics - statistics & numerical data
Patients
Pharyngitis
Pharynx
Population density
Population Surveillance
Rain
Rural areas
Rural Population
Security guards
Social networks
Studies
Urban Population
Viruses
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Description
Summary:In Kenya, >1,200 laboratory-confirmed 2009 pandemic influenza A (H1N1) (pH1N1) cases occurred since June 2009. We used population-based infectious disease surveillance (PBIDS) data to assess household transmission of pH1N1 in urban Nairobi (Kibera) and rural Lwak. We defined a pH1N1 patient as laboratory-confirmed pH1N1 infection among PBIDS participants during August 1, 2009-February 5, 2010, in Kibera, or August 1, 2009-January 20, 2010, in Lwak, and a case household as a household with a laboratory-confirmed pH1N1 patient. Community interviewers visited PBIDS-participating households to inquire about illnesses among household members. We randomly selected 4 comparison households per case household matched by number of children aged
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0038166