Authorities in the south central province of Quang Nam said Tuesday they have culled flocks of ducks which tested positive for the H5N1 strain of bird flu in some rural communes.
Measures have been taken to prevent the possible outbreak of the flu among livestock, they said.
But they admitted to being concerned that around 4 million fowls in the province have not been vaccinated against H5N1 while a new poultry breeding season has arrived.
The provincial government is making all-out efforts to persuade farmers to quarantine sick fowls and is preparing for a vaccination campaign.
According to the Department of Animal Health, H5N1 was also detected in the northern Bac Ninh Province near Hanoi in early January.
The Ministry of Health reported two human deaths from bird flu – a 52-year-old man in Binh Phuoc Province and a 60-year-old woman in Dong Thap Province, both in the south – in January.
The disease has claimed 64 lives so far in Vietnam, one of the highest fatality rates for any country, according to the World Health Organization (WHO).
The H5N1 strain of bird flu has caused 649 human cases since it re-emerged in 2003, with 385 of them dying, WHO said.
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