Comments
Glossary
Exit
Back
Next
Immunization: You Call the Shots
skip to end of menu by clicking now Polio
 
 Objectives
 About Poliomyelitis
 About Polio Vaccine
 Indications for Vaccination
 Combination Vaccines
 Contraindications and Precautions to Vaccination
 Use of the VIS, "POLIO VACCINE: What you need to know"
 Vaccine Storage and Handling
 Vaccine Administration
 Adverse Reactions Following Vaccination
 Resources

 

About Poliomyelitis

Symptoms of polio vary greatly, but can be classified into four general groups: asymptomatic, minor illness, nonparalytic, and paralytic. Click on each button below to learn more.

This bar chart shows that up to 72% of poliovirus infections in children are asymptomatic, about 24% of polio infections in children consist of a minor, non-specific illness, about 1% to 5% result in nonparalytic aseptic meningitis, and fewer than 1% result in paralysis.
Source: Centers for Disease Control and Prevention

Asymptomatic Minor illness
Nonparalytic Paralytic

Asymptomatic

Up to 72% of all poliovirus infections in children are asymptomatic.
However, a person with asymptomatic poliovirus infection can still
spread the virus because it is shed in his or her stool.

Learning Opportunity
Click here to read about
cases of poliomyelitis.