Infection The poliovirus is transmitted through food and water contaminated with sewage.
Vaccination Vaccination against polio is included in all childhood vaccination programmes. There is lifelong protection after the vaccinations.
Inactivated (killed) polio vaccine An inactivated vaccine for injection is used in most industrialized countries. Protection is life-long after three vaccinations.
Symptoms Most often a mild diarrhoea. Paralysis may be seen in all muscle groups starting as weakness and steering problem in a limb. Serious infections may be accompanied by fever.
Diagnosis Antibodies in a blood sample. Culture of the virus or detection of virus DNA in a stool sample.
Treatment Supportive only. No specific antiviral drugs available.
More about polio Wild polio virus is now only found in certain countries in Africa especially Nigeria, and in India. Cases of vaccine-virus related polio is seen in rare cases, and because of this there is a shift in low risk countries from the oral vaccine to the inactivated vaccine.