Polio

Polio, also called poliomyelitis (hereinafter referred to as polio), is an acute infectious disease caused by polio virus. In prevalence, there are more cases of occult infection and no paralysis, and the incidence of children is higher than that of adults. Infants and young children are more common before the general vaccine, so it is called polio. The clinical manifestations are mainly fever, sore throat and limb pain, and some patients may experience flaccid paralysis. The main lesion is in the gray matter of the spinal cord, and severe damage may have the sequelae of paralysis. After the widespread use of vaccines to prevent the disease in the late 1950s, its incidence has dropped significantly. After smallpox was eliminated in the 1970s, polio has been set as the next target for elimination in the late 2000s.