Polio Channel
Topics & Medications
Quicklinks
Related Channels

Polio

Contagious Period

A person who is infected can spread polio about 7-10 days before symptoms begin. A person can continue to spread the disease for about three to six weeks after the beginning of symptoms. However, a person is most contagious for the 7-10 days after symptoms have begun.
 

Incubation Period

Following transmission, a person does not immediately become sick. Once the poliovirus enters the body, it travels to the back of the throat, nose, and intestines, where it begins to multiply. It can also travel to other parts of the body. After 7-14 days (on average), symptoms can begin. This period between transmission and the beginning of signs and symptoms is called the incubation period. The incubation period can be as short as 4 days or as long as 35 days.
 

Symptoms

Up to 95 percent of people who are infected have no symptoms. However, infected people who do not have symptoms can still spread the virus and cause others to develop the disease.
 
If a person does develop symptoms, the symptoms can be categorized into one of three groups, which include:
 
  • Minor polio symptoms (also known as abortive poliomyelitis)
  • Aseptic meningitis
  • Paralytic poliomyelitis.
 
(Click Polio Symptoms for more information or Polio Pictures to see the possible impact of an infection with the virus.)
 

Polio Disease

Terms of Use
Advertise with Us
Contact Us
About eMedTV
Privacy Policy
Copyright © 2006-2017 Clinaero, Inc.
eMedTV serves only as an informational resource. This site does not dispense medical advice or advice of any kind. Site users seeking medical advice about their specific situation should consult with their own physician. Click Terms of Use for more information.