https://operationrescue.ch/wp-content/uploads/2019/01/DSC_6570_kl.jpg457690operatiohttps://operationrescue.ch/wp-content/uploads/2021/01/logo-300x282.pngoperatio2019-01-23 10:19:282019-01-23 10:28:52Hygiene prevention: Children learn to wash their hands