Doctor says many diseases can be prevented from spreading by hand washing. These include pilln pinworms, influenza, the common cold, hepatitis A, meningitis and infectious diarrhea.

• 医生说很多疾病能够通过洗手而阻止传播这些疾病包括蛲虫，普通性感冒，甲肝，脑膜炎和感染性腹泻。