不明原因儿童急性肝炎
acute hepatitis of unknown origin in children

A possible case of a mysterious form of child hepatitis has been found for the first time in Japan, the health ministry has said. Cases so far have mostly been reported in Europe.
日本厚生劳动省称，日本国内出现了首例可能患有不明原因急性肝炎的儿童。近期多国现不明原因儿童肝炎感染，其中多数是欧洲国家。