This ‘minor’ bird flu strain has potential to spark human pandemic

Potential Human Pandemic from H9N2 Bird Flu Strain

A team of scientists has found that the H9N2 bird flu virus, often considered minor due to its limited impact on birds, has adapted to human cells, posing a potential threat of a human pandemic.

Although experiments suggest this adaptation, there have been no reported cases of person-to-person transmission of the virus yet.

The researchers emphasize that more surveillance of the H9N2 virus is necessary.

The focus has primarily been on the avian influenza virus H5N1, but concerns are growing over the spread of other bird viruses, including H9N2.

Author's summary: H9N2 bird flu has pandemic potential.

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Nature Nature — 2025-10-27

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