The information was released on April 7 by the Chairman of the Yen Hung district People’s Committee, who also called for urgent measures to prevent the spread of the fatal disease.

Earlier on March 19, Quang Ninh province also declared bird flu recurrence in Dong Mai commune, Yen Hung district.

Local farmers claimed that although their poultry had been vaccinated they were still infected by bird flu virus.

The provincial Veterinary Department has introduced urgent measures to quarantine infected areas and sterilize breeding farms. The Department has also banned the transport and trading of sick poultry.

Meanwhile, the Director of the Bac Kan provincial Health Department, Nong Quoc Chi, confirmed an A/H5N1-infection case on April 5.