New bird flu variant in China a mix of 4 strains
May 6, 2013
BEIJING: The new H7N9 bird flu strain has been found to be a mixture of genes from four different flu strains found in birds even as the first patient with severe symptoms of the deadly disease has made a complete recovery.
Since it was first identified on March 30, 127 cases have been detected in 10 provincial regions, and the virus has claimed 26 lives in the Chinese mainland. On Saturday, doctors claimed that the first person to be diagnosed with severe symptoms has recovered in Zhejiang province.
Several patients have recovered from the disease earlier, but the virus was detected early in those cases. The medics decided to treat the patient with life-support systems that replaced the functions of his liver and lungs.
Meanwhile, the strain was found to be a new type of “quadruple reassortant” virus with a mixture of genes from four flu strains found in birds, researchers said.
One of those genes is likely to have come from migratory birds from East Asia. The H7 influenza virus was later transmitted to ducks in the Yangtze River Delta region during migration. The ducks might have acted as a host, transferring viruses of wild birds to domestic poultry.
Another six gene segments are traceable to chickens in east China’s Jiangsu and Zhejiang provinces, as well as in Shanghai.Courtesy:Times of India
Published: Zarai Media Team
Poultry, (برڈ فلو) Bird Flu,