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Avian Influenza Report is a weekly report produced by the Surveillance Division of the Communicable Disease Branch of
The Centre for Health Protection. This report highlights global avian influenza activity in humans and birds.
VOLUME 20, NUMBER 52
Reporting period: Dec 22, 2024 – Dec 28, 2024 (Week 52)
(Published on December 31, 2024)
Summary
1. 2. 3. Since the previous issue of Avian Influenza Report (AIR), there were no new human cases
of avian influenza A(H7N9). Since March 2013 (as of December 28, 2024), there were a
total of 1568 human cases of avian influenza A(H7N9) reported globally (all were
reported in the seven waves between 2013 and September 2019). The latest case was
reported on April 5, 2019.
Since the previous issue of AIR, there were no new human cases of avian influenza
A(H5N6). Since 2014 (as of December 28, 2024), there were 93 human cases of avian
influenza A(H5N6) reported globally and 92 of them occurred in Mainland China. The
latest case was reported on July 24, 2024.
Since the previous issue of AIR, there were no new human cases of avian influenza
A(H5N1). From 2014 to 2023, 0 to 145 confirmed human cases of avian influenza
A(H5N1) were reported to the World Health Organization (WHO) annually (according to
onset date).* The latest case was reported on December 18, 2024. ...
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