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"For example,松茸塔马莱 hand, foot and mouth disease is a common intestinal infectious disease in infants and young children, and it is easy to break out in kindergartens. Washing hands is a very effective and economical preventive method." Kang Min pointed out that grassroots disease control workers have carried out various "hand hygiene in schools " . "The service, in the form of big hands and small hands, teaches children the correct way to wash their hands, which greatly reduces the risk of hand, foot and mouth disease outbreaks in kindergartens.