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doi: https://doi.org/10.1038/d41586-025-03519-1
Updates & Corrections
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Correction 28 October 2025: A previous version of this story incorrectly stated that H9N2 has killed 173 people since 2015, and that Kelvin To's team found evidence of H9N2 in viruses that have caused bird flu outbreaks in people.
References
Chen, L.-L. et al. Emerg. Microbes Infect. https://doi.org/10.1080/22221751.2025.2576574 (2025).
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