Cause
Is the infectious agent a virus, bacteria, fungus, or parasite?
Polio is a virus. It is the causative agent of poliomyelitis and is a member of the picornaviridae family
How does the infectious agent interact with the body to produce the symptoms of the disease?
Polio is usually caused by contaminated drinking water so when someone drinks water that might not be clean they may have a chance of getting this virus.