Chinese scientists reveal H7N9 flu virus origins
BEIJING, April 24 (PNA/Xinhua) — Scientists have found that the H7N9 flu virus in humans has a similar gene sequence to that of H7N9 found in live poultry, the China Academy of Agricultural Sciences (CAAS) said Tuesday.
Studies were carried out by CAAS Haerbin Veterinary Research Institute and found that the H7N9 flu virus is a combination of genes from various viruses, a CAAS statement said.
In the H7N9 flu virus, six of its inner genes are from the H9N2 bird flu virus, but origins of both its hemagglutinin (HA) gene and neuraminidase (NA) gene are not clear, the statement said. [full story…]