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

Bird Flu Strain H9N2: A Potential Threat to Humans

A recent study suggests that the H9N2 bird flu strain, often considered minor, has adapted to human cells, raising concerns about its potential to spark a human pandemic.

Although cases of person-to-person transmission have not been reported yet, scientists are worried about the spread of this and other bird viruses, particularly given the attention focused on avian influenza virus H5N1 in recent years.

The researchers say more surveillance of the virus is needed.

The team's findings emphasize the importance of monitoring the H9N2 virus to prevent a potential outbreak.

Author's summary: H9N2 bird flu strain poses pandemic threat.

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Nature Nature — 2025-10-27

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