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Japanese authorities began culling some 50,000 chickens yesterday after a bird flu outbreak at a farm in the northern Iwate region.
It is the 19th bird flu outbreak of the season in Japan, the agriculture ministry said.
The latest farm reported increasing deaths of fowl, and test results confirmed yesterday that bird flu was the cause, the ministry added.
It prompted the culling of 50,000 chickens there, the regional Iwate government said.
Iwate also banned the movements of 170,000 birds kept at two other farms within a three-kilometre (1.86-mile) radius, reports AFP.
Some 3.8 million birds kept within 10 kilometres of the infected farm are to stay inside the zone for now.
On Thursday, another farm in Iwate and a firm in the central Aichi region were hit by the virus and began killing their 120,000 and 147,000 birds respectively.
On December 29, an outbreak was confirmed at a farm in eastern Ibaraki, resulting in the killing of 1.08 million birds there.
