After Rajasthan confirmed a bird flu outbreak in the desert state, 140 more crows have died in six districts of state, official said.

Of these, 35 crows died in Sawai Madhopur, 53 in Bikaner, 22 in Jhalawar, 17 in Baran, nine in Pali and seven in Banswara.

In the last one week, a total of 522 birds have died in Rajasthan, out of which 471 were crows, while others include heron and baya weaver.

On Monday, around 13 samples were sent to Bhopal for further testing for avian influenza. The H5N1 virus currently detected among bird population in Himachal Pradesh, Rajasthan and Madhya Pradesh can be transmitted to human bird and the spread can turn fatal, especially amid the Covid-19 outbreak, experts say.

"We are working on a strategy to take immediate action for checking the infection. Our teams are tracking all such cases without delay and disposing them of with particular caution," Mohanlal Meena, Chief Wildlife Warden, told IANS.

(IANS)