The process of culling commenced on May 1, after samples from three Navapur poultry farms tested positive for bird flu. (File Photo)

A fortnight after bird flu (avian influenza) was first detected at Navapur in Maharashtra’s Nandurbar district, officials from the Department of Animal Husbandry and Dairying identified two more poultry farms reporting unusual chicken deaths, with samples testing positive for the virus.

“Both farms where samples tested positive are located within a 3-km radius of the original farm where avian influenza was initially detected.…