1,400 of children fall ill with symptoms of food poisoning in Japan , Hamamatsu . Local news reports said the schools used an ingredient from one shared supplier . Authorities suspect norovirus caused the outbreak . Health officials are testing school lunches to determine the origin of the illness . The case follows a food poisoning scare that left Hundreds people ill in less than a month .
1,400 of children fall ill with symptoms of food poisoning in Japan , Hamamatsu . Authorities suspect norovirus caused the outbreak . Health officials are testing school lunches to determine the origin of the illness . The case follows a food poisoning scare that left Hundreds people ill in less than a month .