Students are treated at a hospital in HCMC after suffering from food poisoning on Sunday. Photo by VnExpress/Le Binh Dozens of children aged seven to 12 had to be hospitalized with food poisoning Sunday after attending a church service in HCMC. Preliminary investigation reveals that the kids had been served bread roll sandwich with chicken floss that morning at the Tan Thai Son Church in the suburban Tan Phu District to the west of the city. Around 11 a.m. many of them started vomiting and had high fever, stomachache and diarrhea. The families immediately took them to a local hospital. Soon dozens more started having similar symptoms. As of Sunday night at least 40 patients, two of them adults, had been hospitalized with food poisoning, Luong Van Sinh, deputy head of the Tan Phu District Hospital, told the media. Health officials have taken food samples for testing and are investigating the cause of the food poisoning. Food poisoning breaks out frequently in Vietnam, mostly after meals at school and factory canteens. In December last year 142 children at An Phu Primary School in HCMC’s District 2 were hospitalized and diagnosed with gastrointestinal infections after eating food served at the school. The offenders in such cases are rarely taken to court. Official data shows 1,300 people were affected in 53 cases of food poisoning in the first half of this year, 11 of them fatally.