At a poultry farm in Chitose City, Hokkaido, an avian influenza virus suspected to be “highly pathogenic” was detected in lifeless chickens, and the prefecture started culling about 310,000 chickens. Since final week, extremely pathogenic viruses have been detected one after one other at poultry farms in Chitose City, and the full variety of chickens to be disposed of for egg manufacturing is predicted to be about 1.2 million, exceeding 20% ​​of the variety of breeding in Hokkaido.
Source
Hokkaido hen flu forecast to eliminate greater than 20% of breeding in Hokkaido | NHK
