Bangladesh has been identified as the source of outbreak of bird flu in South Dinajpur, one of the two affected districts in West Bengal, a senior Animal Husbandry official said.
"The germs were brought by winds blowing from Bangladesh," Assistant Commissioner of the Central Animal Husbandry department Sujit Dutta said in Balurghat, the headquarters of south Dinajpur.
Dutta said that the Centre is constantly monitoring the situation in the district.
The BSF guarding the Indo-Bangla border in the district has been alerted to ensure that no poultry products could enter from Bangladesh, Inspector General of Police (North Bengal) RJS Nalwa said.
The administration of Siliguri subdivision of Darjeeling district has decided to immediately stop import of chickens, chicks and eggs to Siliguri from outside and continue checks for sick birds, SDO Smita Pandey said.