If the child appears unexplained crying, vomiting, fever, turbid urine, hematuria, urinary oliguria even without the phenomenon requires an immediate visit to a local hospital.

• 如果孩子出现不明原因的哭闹、呕吐、发热、尿液浑浊、血尿、少尿甚至无尿的现象，就需要立即到当地医院就诊。