Authorities in Tan Lap Commune said on May 1 they had ordered T.T. bakery in Tan Son Village to suspend operations following the incident. The shop has been closed since April 30 while investigations continue.
Local officials said the business held a household registration certificate and had signed a food safety compliance pledge. Relevant food samples have been collected for testing.
Huong Hoa Regional General Hospital reported that 18 additional patients were admitted on May 1 with suspected food poisoning symptoms, bringing the total number of cases to 64.
Doctors said most patients were in stable condition, with no severe cases requiring transfer to higher level hospitals. Some patients have already been discharged.
Patients admitted to hospital with suspected food poisoning after eating banh mi (Photo: Hospital).
Authorities said all those affected had eaten banh mi purchased from the bakery on April 28 and 29. The shop typically sells around 100 loaves a day and supplied 44 loaves on April 29 to Huong Loc Ethnic Minority Semi-boarding Primary and Secondary School in Huong Lap Commune.
Patients treated between April 29 and May 1 showed symptoms including fever, diarrhoea, vomiting, abdominal pain, fatigue and dehydration. Most were aged between 11 and 15.
Officials are continuing to investigate the cause of the suspected outbreak.