Authorities confirmed the presence of the H5N1 virus in carcass and tissue samples (File photo). The avian influenza (bird flu) crisis in Maharashtra’s Navapur has intensified , with samples from three more poultry farms testing positive for the virus just days after the initial culling operation was completed. The ICAR-National Institute of High Security Animal Diseases (NIHSAD) in Bhopal confirmed the presence of the H5N1 virus in carcass and tissue samples sent from the region. Dr Sanjay Khachane, Deputy Commissioner of Animal Husbandry in the Nandurbar district, confirmed that the administration received the positive reports late Wednesday. “Samples sent from Navapur’s Palawala, Sakisma, and Ashraf poultry farms have tested positive for avian influenza,” Dr Khachane told The Indian Express. The latest findings trigger a fresh round of containment measures. Just a week ago, authorities concluded a massive six-day operation that culled 2.47 lakh birds and destroyed 9.26 lakh eggs.…