Description
Poliomyelitis, often called polio or infantile paralysis, is an acute viral infectious disease caused by any of the three serotypes of polioviruses (PV1, PV-2, and PV-3). Type 1 (Brunhilde): often with severe symptoms, Type 2 (Lansing): with milder symptoms, Type 3 (Leon): rare, but with severe symptoms.
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