Summary:
- The article discusses an alarming mutation found in the H5N1 avian influenza virus, which has raised concerns about the potential for a future pandemic.
- The mutation, known as the "Yamagata" mutation, appears to allow the virus to better infect human cells and could potentially lead to more efficient human-to-human transmission.
- Experts warn that this mutation, combined with the virus's high mortality rate (up to 60% in some cases), could make it a significant threat if it were to spread widely among humans.