The bird flu epidemic in the Indian state of West Bengal has inched closer to the capital, Calcutta, with an outbreak reported close to the city.Tests on dead birds from Balagarh, less than a two-hour drive from Calcutta, have tested positive for the disease.
Nine of the state's 19 districts have been already hit by the flu. Officials say more than 2m birds would be culled.
The H5N1 strain of bird flu is regarded as highly pathogenic and can also cause disease and death in humans.
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