A cewar Hukumar Lafiya ta Duniya (WHO) da CDC, tsabtace hannu na daya daga cikin mafi kyawun kayan aikin yada kwayoyin cuta. Ya dace a sanya na'urar tsabtace hannu a cikin manyan wuraren zirga-zirga kamar otal-otal, ofisoshi, makarantu, gidajen abinci, gwamnatoci, asibitoci da masana'antu. Da yake yanayin zafi da hu...
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