Ho Chi Minh City, Dhu-AlQa'dah 27, 1435, Sep 22, 2014, SPA -- More than 3,100 ducks were found to be infected with the bird flu virus A/H5N6 in farms in Vietnam's central Quang Nam province, local press reported Monday. A flock of 2,000 ducks at a farm in Tam My Dong commune in Nui Thanh district had tested positive for the virus last week, and more than 900 ducks in other poultry farms in the commune were then found dead en masse, Xinhua quoted Vietnam News daily as saying. Phan Nhu Lai, deputy head of Nui Thanh district's veterinary center, was quoted in the report as saying that to prevent the spread of the virus infection, the center killed all the infected birds, burned their carcasses and sprayed chemicals at the infected farms. The center vaccinated 50 flocks of ducks and sprayed all farms in the commune, and the district's veterinary emergency teams are instructed to work in shifts for 24-hour periods to monitor the virus infection in the area. In addition, all veterinary centers in the province's 18 districts are requested to prepare measures against the spread of the A/H5N6 virus. --SPA 19:34 LOCAL TIME 16:34 GMT www.spa.gov.sa/w