Wash your hands.
D003428:Cross Infection / Q000517:prevention & control; D005260:Female; D006235:Hand Disinfection / Q000379:methods / Q000592:standards; D006282:Health Personnel; D006801:Humans; D017053:Infection Control / Q000379:methods; D008297:Male; D012737:Sex Factors; D012867:Skin / Q000382:microbiology