About 40 students from Luoshan Middle School in Pudong New Area were rushed to hospital yesterday for suspected food poisoning, Shanghai Television reported.
Disease control and education authorities are investigating the incident in which students were being treated for vomiting, diarrhea, stomach ache and other symptoms linked with food poisoning.
Most students had been discharged from the hospital by evening but 10 of them were still receiving treatment.
Two students are in critical condition.
A 15-year-old student, Xing Xiao, told Shanghai Daily he had noodles, bean curd and pork chop for lunch in the school on Tuesday. He started feeling uncomfortable in the abdomen around midnight followed by vomiting and diarrhea. His parents rushed him to a nearby hospital, where he was diagnosed with enterogastritis and immediately put on saline drips.
The family suspected that it could be the iced watermelon which he had after dinner. But in the morning, shortly after her mother called his teacher to ask for a sick leave, the teacher called back later asking her to take him to hospital if he felt unwell.
"I soon found out that some of my classmates were also sick and had similar symptoms. They were taken to the Gongli Hospital," Xing said.
The students were given bread yesterday during lunch rather than the meals cooked in the school's canteen.
