For the last two days, no province has reported any cases of acute diarrhea, with tough measures and strict checks at dog meat eateries bringing a possible halt to the virus, said a health official on May 22.

There have been 832 cases of acute diarrhea, including 88 testing positive for the virulent vibrio cholera virus and one fatality, said Dr. Nguyen Huy Nga, head of the Department of Preventive Medicine and Environment.

Tests carried out by the National Institute of hygiene and Epidemiology showed that people in the northern mountain province of Yen Bai and the central province of Nghe An are positive for cholera virus.

15 provinces in the country have acute diarrhea caused by cholera virus.

Epidemiologists said that it takes a long time to control acute diarrhea caused by cholera, and fresh outbreaks may occur due to poor hygiene conditions and lax behavior in food safety.

The Minister of Agriculture and Rural Development, Cao Duc Phat, to help reduce cholera cases, has ordered health authorities and relevant agencies to ban blood pudding, as well as the sale of live animals in cities. Animals without any clear origin cannot be traded.