Twenty-two cases of acute diarrhoea have been reported in Hanoi since the health ministry announced December 25 that the epidemic had been contained. minister of Health Nguyen Quoc Trieu Monday said further that 17 of the 22 cases had tested positive for severe acute diarrhoea.
The ministry is now considering developing a vaccine against the condition.
It has urged the local government to instruct health and other officials to thoroughly inspect hygiene and safety at food production facilities and pumping stations supplying water to the city.
After severe acute diarrhoea was first detected in October last year in Hoang Mai precinct, a series of outbreaks hit the rest of the city.
It spread to 13 northern provinces and cities, affecting more than 1,900 people.
Of these, 295 tested positive for cholera.