The two strains of the H1N1 influenza virus responsible for the 1918 and 2009 global flu pandemics do not cause disease in birds. It is unlikely that birds played a role in the spread of the H1N1 virus in these pandemics, according to new research.
The two strains of the H1N1 influenza virus responsible for the 1918 and 2009 global flu pandemics do not cause disease in birds. It is unlikely that birds played a role in the spread of the H1N1 virus in these pandemics, according to new research.