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

Potential Human Pandemic from H9N2 Bird Flu Strain

A team of researchers has found that the H9N2 bird flu virus, often considered a minor strain, has the potential to spark a human pandemic.

Experiments suggest that H9N2 has adapted to human cells, but no cases of person-to-person transmission have been reported yet.

The researchers say more surveillance of the virus is needed.

While attention has been focused on the H5N1 avian influenza virus, scientists are concerned about the spread of other bird viruses, including H9N2.

The research highlights the need for continued monitoring of the H9N2 virus to prevent a potential human pandemic.

Author's summary: H9N2 bird flu strain may cause human pandemic.

Nature — 2025-10-27