It can be mild or severe
depending on the affected muscles. Fortunately has been eradicated by the
effects of effective vaccines to prevent disease.
Children should receive four
doses of the vaccine before entering school, and there are two types of
vaccines against this disease: IPV (or inactivated polio vaccine) and injected
into the leg or arm, and OPV (or attenuated polio vaccine) that is taken orally
as drops.
