Objectives To investigate latent infections with and dynamic changes caused by enterovirus(PE),enterovirus 71(EV71),or coxsackievirus A16(CA16)among healthy people in Linyi and to analyze the relationship between latent infection and the prevalence of hand,foot,and mouth disease in Linyi. Methods Four hundred and twenty-five respondents(including 285children≤6and 140guardians)were surveyed in April,June,and September of 2013(1,275responses).Fecal specimens were collected and tested for PE,EV71,and CA16 usin...