The infections were mainly detected in Tuyen Quang City and the districts of Yen Son, Na Hang, Ham Yen, and Son Duong.

The centre predicts that the number of new cases may rise in the coming time.

The centre predicts that the number of new cases may rise in the coming time. To prevent it from spreading out, the Department of Health of Tuyen Quang Province has asked the Provincial Centre for Disease Control to keep a close watch on the developments of the disease.

Attention will be paid to stepping up dissemination to raise public awareness of disease prevention and control, improve environmental sanitation, and spray chemicals to kill mosquito larvae.