Bird flu resurfaces in northeast India

GUWAHATI, India (Reuters) - Authorities in a remote northeastern state of India prepared to cull thousands of chickens after a fresh outbreak of bird flu in poultry was detected on Tuesday, officials said.

More than 25,000 chickens and ducks have already been slaughtered in Tripura state this month after eight villages were hit by the H5N1 strain.

On Tuesday, officials said bird flu had spread to a new area.

"Bird flu has been confirmed for the second time in Tripura," Kartick Debbarma, a senior animal resources official said in Agartala, Tripura's capital. "It is the H5N1 strain."

The remote northeastern state borders Bangladesh, where more than half the country's districts have been affected by the virus.

In India, the virus resurfaced in the eastern state of West Bengal in January this year, forcing authorities to cull more than four million birds.

Since then the virus has flared up intermittently, hitting poultry sales in the region.

Many states banned poultry products, pulling down prices sharply and prompting farmers to cut production.

The World Health Organization described the January outbreak in West Bengal as the worst ever in India.