Bird flu outbreaks have occurred in Vietnam's northern Cao Bang Province since Oct. 10, raising the total number of localities currently affected by the disease to three.
The disease has killed or infected 480 ducks and 80 chickens raised by 13 households in Trung Khanh district, the Department of Animal Health under the Vietnamese Ministry of Agriculture and Rural Development said Friday, noting that samples from the fowls have been tested positive to bird flu virus strain H5N1.
To prevent bird flu spread, local veterinary agencies have culled all ill poultry and isolated the affected areas.
Now, bird flu is hitting Cao Bang, central Quang Tri Province and southern Tra Vinh Province.
Bird flu outbreaks in Vietnam, starting in December 2003, have killed and led to the forced culling of dozens of millions of fowls in the country, according to the department.
Source:Xinhua
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