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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Evidence for avian H9N2 influenza virus infections among rural villagers in Cambodia
Journal of Infection and Public Health, Volume 6, No. 2, Year 2013
Notification
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Description
Background: Southeast Asia remains a critical region for the emergence of novel and/or zoonotic influenza, underscoring the importance of extensive sampling in rural areas where early transmission is most likely to occur. Methods: In 2008, 800 adult participants from eight sites were enrolled in a prospective population-based study of avian influenza (AI) virus transmission where highly pathogenic avian influenza (HPAI) H5N1 virus had been reported in humans and poultry from 2006 to 2008. From their enrollment sera and questionnaires, we report risk factor findings for serologic evidence of previous infection with 18 AI virus strains. Results: Serologic assays revealed no evidence of previous infection with 13 different low-pathogenic AI viruses or with HPAI avian-like A/Cambodia/R0404050/2007(H5N1). However, 21 participants had elevated antibodies against avian-like A/Hong Kong/1073/1999(H9N2), validated with a monoclonal antibody blocking ELISA assay specific for avian H9. Conclusions: Although cross-reaction from antibodies against human influenza viruses cannot be completely excluded, the study data suggest that a number of participants were previously infected with the avian-like A/Hong Kong/1073/1999(H9N2) virus, likely due to as yet unidentified environmental exposures. Prospective data from this cohort will help us better understand the serology of zoonotic influenza infection in a rural cohort in SE Asia. © 2013 King Saud Bin Abdulaziz University for Health Sciences.
Authors & Co-Authors
Blair, Patrick J.
Unknown Affiliation
Putnam, Shannon D.
Unknown Affiliation
Krueger, Whitney S.
United States, Gainesville
University of Florida
Wierzba, Thomas F.
Unknown Affiliation
Heil, Gary L.
United States, Gainesville
University of Florida
Yasuda, Chadwick Y.
Unknown Affiliation
Williams, Maya
Unknown Affiliation
Kasper, Matthew R.
Unknown Affiliation
Friary, John A.
United States, Gainesville
University of Florida
Saphonn, Vonthanak
Unknown Affiliation
Peiris, Joseph Sriyal Malik
Hong Kong, Hong Kong
The University of Hong Kong
Shao, Hongxia
United States, Blacksburg
Virginia-maryland College of Veterinary Medicine
Pérez, Daniel Roberto
United States, Blacksburg
Virginia-maryland College of Veterinary Medicine
Gray, Gregory C.
United States, Gainesville
University of Florida
Statistics
Citations: 46
Authors: 14
Affiliations: 4
Identifiers
Doi:
10.1016/j.jiph.2012.11.005
ISSN:
18760341
Research Areas
Infectious Diseases
Study Design
Cross Sectional Study
Cohort Study