Researchers at Pirbright investigate the emergence of new bird flu viruses with the potential to infect people
Pirbright scientists have discovered that infection with two strains of avian flu can lead to the emergence of a new virus strain with the potential to jump from birds to humans.
Human cases of avian influenza are extremely rare but can occur if a person comes into very close contact with an infected or dead bird.
The study shows that avian influenza virus strains H9N2 and H7N9 can share genetic information to create an H9N9 strain with the potential to cause more severe disease in poultry and pose a threat to human health.