Many ducks and chickens were found sick without any apparent reason in nine households in the communes of Noong Luong and Thanh Yen in Dien Bien district on October 23.

The provincial veterinary department has taken 10 samples from the duck flock and worked with the local authorities to cull nearly 2,300 birds.

After the new outbreak was officially confirmed, the veterinary branch has asked the province to control the transportation of poultry. Over the past week, preventive measures have been taken to prevent the epidemic from spreading to nearby areas.

Tran Thi Dan, deputy head of the provincial veterinary department, said that health workers have disinfected the affected areas once a day, controlled the transportation of poultry in the province and investigated all sick livestock immediately.