Scientists at the University of Arizona, Tucson, U.S.A., reported that a person with a bad cold who blew his nose and turned on a tap could leave “more than 1,000 viruses on the handle. ”
Para ilmuwan Universitas Arizona, Tucson, AS, melaporkan bahwa jika seseorang yang sedang flu berat membuang ingus lalu memutar keran, ia dapat meninggalkan ” lebih dari 1.000 virus di keran itu ”.