Handwashing with soap can have an impact on reducing flu, trachoma, SARS, and most recently in the case of cholera and Ebola outbreak, one of the key interventions is handwashing with soap.
用肥皂洗手 可以减少 流感，颗粒性结膜炎（沙眼），SARS 还有近年来的霍乱 埃博拉病毒的爆发， 最重要的预防措施之一就是 用肥皂洗手。