Bird Flu H5N1 Update: Low Human Risk Continues as Virus Persists in Global Bird Populations
Published: December 13, 2025
Duration: 4:05
This is Bird Flu Bulletin: Daily H5N1 Update for Saturday, December 13, 2025.
Top stories:
First, the World Health Organization reports that the United States’ most recent human bird flu case, confirmed in mid‑November, was caused by H5N5, not H5N1, and remains the only U.S. human H5‑series infection since February. WHO says there is still no evidence of sustained human‑to‑human transmission, and the overall global risk to the public remains low.
Second, the Hong Kong Centre for Health Protection’s global avian influenza update, current to December 9, shows continued H5...
Top stories:
First, the World Health Organization reports that the United States’ most recent human bird flu case, confirmed in mid‑November, was caused by H5N5, not H5N1, and remains the only U.S. human H5‑series infection since February. WHO says there is still no evidence of sustained human‑to‑human transmission, and the overall global risk to the public remains low.
Second, the Hong Kong Centre for Health Protection’s global avian influenza update, current to December 9, shows continued H5...