A total of 548 students from multiple elementary and high schools have been affected by food poisoning in Northwest China’s Qinghai Province, local authorities said Wednesday.
Dozens of students from three schools in the Hui and Tu Autonomous County of Datong started to show symptoms of food poisoning such as vomiting and diarrhea after eating lunch at their schools on Wednesday.
The source that caused the mass food poisoning has been discovered, Wang Yubo, mayor of Xining, the provincial capital, said.
Local authorities added that the remaining lunch has been sealed for tests.
An investigation into the cause of the accident is under way.
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