Low Frequency of H5N1 Infection among Poultry Farmers in Thailand
Author Information
Author(s): Hinjoy Soawapak, Puthavathana Pilaipan, Laosiritaworn Yongjua, Limpakarnjanarat Khanchit, Pooruk Phisanu, Chuxnum Teerasak, Simmerman James M., Ungchusak Kumnuan
Primary Institution: Ministry of Public Health, Nonthaburi, Thailand
Hypothesis
What is the frequency of avian influenza (H5N1) transmission to poultry farmers in Thailand?
Conclusion
Poultry farmers in Thailand showed no confirmed infections with avian influenza (H5N1) despite high exposure risk.
Supporting Evidence
- No participants had anti-H5N1 antibody titers >80, indicating no confirmed infections.
- 7 farmers had lower reactive antibody titers, but these did not meet the WHO definition for seropositivity.
- Previous studies indicated that mild or asymptomatic infections may occur but are not common.
Takeaway
The study found that even though poultry farmers are around sick birds, they didn't get sick from the bird flu.
Methodology
A cross-sectional study was conducted where serum samples from poultry farmers were tested for antibodies to H5N1.
Limitations
The study only included farmers from specific provinces and excluded older participants, which may limit generalizability.
Participant Demographics
Participants included 322 poultry farmers, with a mean age of 34 years, and 52% were women.
Digital Object Identifier (DOI)
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