INDIANAPOLIS – All commercial poultry farms located in the control area and surveillance zone established by Indiana animal health officials tested negative for H7N8 avian influenza, the Indiana Board of Animal Health reported (BOAH).

There have been no new positive tests for several days, however aggressive testing will continue, the agency said. Additionally, AI responders found 104 backyard flocks, and all of those small flock samples tested so far have been negative for the virus. BOAH said the small flocks will be retested in 14 days after initial testing.

The H7N8 virus so far has not spread beyond Dubois County, where 10 premises were affected by the virus. A total of 254 state, federal and local responders are working in Dubois County on surveillance and response efforts, BOAH said.