An expert with the country's agricultural ministry has said that migratory birds may have carried the H7N9 avian influenza virus into China.
![Experts Believe That Migratory Birds Might Have Carried Avian Influenza into China Experts Believe That Migratory Birds Might Have Carried Avian Influenza into China](https://www.medindia.net/afp/images/Health-flu-HongKong-61111.jpg)
As the source of infection and its transmission remained unclear, the possibility of migratory birds carrying the H7N9 avian influenza virus into the country could not be ruled out, Xinhua quoted Yu Kangzhen, the chief veterinarian with the agriculture ministry, as saying Sunday.
The virus has mostly been found in live poultry trading markets, not in farms raising poultry, he said, adding the virus had not been found in pigs so far.
He said the number of most infections have been reported from Shanghai, but the possibility of the virus spreading further also existed.
Source-IANS