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

• 医生说许多疾病的传播可以通过洗手来防止.；这些疾病包括蛲虫病；流感；普通感冒；甲肝；脑膜炎和痢疾