BHOPAL: Around 1,500 crows and wild birds have died so far in 41 districts of Madhya Pradesh since the outbreak of bird flu. There have been confirmed cases of bird flu across 18 districts in the state. As many as 334 samples collected from various districts have been sent for testing to the National Institute of High Security Animal Diseases (NIHSAD) in Bhopal. Animal Husbandry Minister Prem Singh Patel has said all efforts are being made to control the spread of bird flu in the state. (IANS)