The primary medical purpose of handwashing is to remove pathogens (bacteria, viruses, or other microorganisms that can cause disease) and chemicals, which can be harmful or cause disease.
lengo kuu la kimatibabu la kuosha mikono ni kusafisha mikono kutokana na virusi (bakteria, virusi, au viini vingine vianavyoweza kusababisha magonjwa) na kemikali zinazoweza kusababisha madhara au magonjwa.