Another flu flu convulses America.
Up to 5 crore chickens have died due to avian flu in America
It is the deadliest disaster in the country's history, according to the Department of Agriculture.
Called Highly Pathogenic Avian Influenza (HPAI), the flu is transmitted through the droppings and feathers of wild ducks.
Due to the flu, the chicken meat and chicken eggs in the US market have been greatly affected.
In 2015, nearly 5 crore birds succumbed to the flu in the US.
Avian flu is spreading in many European countries including Britain.
Millions and millions of chickens and other birds had to be killed to prevent the spread of the flu.