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Avian Influenza Surveillance with FTA Cards: Field Methods, Biosafety, and Transportation Issues Solved
Published on: August 2, 2011
Serological Surveillance of Avian Influenza Virus Exposure Using Paired Sera Among Occupational Contacts in Taiwan,
Chieh-Yu Lin1, Tsung-Pei Tsou1, Po-Wei Chu1
1Centers for Disease Control, Ministry of Health and Welfare, Taipei, Taiwan.
Abstract:
In 2025, Taiwan implemented paired sera surveillance among occupational contacts of avian influenza viruses (AIVs). Of 122 contacts analyzed, 117 (95.9%) remained asymptomatic with high personal protective equipment compliance (91.8%). No seroconversion was detected against AIV A(H5N2) clade 2.3.4.4b. These findings suggest a low risk of human infection despite persistent poultry outbreaks, provide timely serological evidence during the ongoing outbreak, and demonstrate the effectiveness of Taiwan's integrated human-animal surveillance in early risk characterization.
