Serological Surveillance of Avian Influenza Virus Exposure Using Paired Sera Among Occupational Contacts in Taiwan, January-September 2025.

Authors

Chieh-Yu Lin, Tsung-Pei Tsou, Po-Wei Chu, Shu-Er Yang, I-Ling Yu, Yao-Tsun Li, Ming-Tsan Liu, Yi-Chien Chih

Published in

Influenza and other respiratory viruses. Volume 20. Issue 7. Pages e70297.

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.

PMID:
42478106
Bibliographic data and abstract were imported from PubMed on 21 Jul 2026.

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