nurse perform surgical hand washing, preparation to the operating room. closed-up of the hands.

antibacterial aseptic bacteria care clean cleaning cleanliness cleanse clinic closedup control dirty disease disinfectant doctor finger foam foaming foamy guidance hand hands handsn health healthcare healthy hospital hygiene hygienic infection medical medicine nurse operating operative part perform person preparation prevention procedure professional room safety sanitary soap soapy specialist steps sterile sterilization surgeon surgery surgical technician technique wash washing wet