How do you get polio?

You can become infected with the polio virus if you come into contact with the poo (faeces) of someone with the infection, or with the droplets launched into the air when they cough or sneeze.

You can also get the infection from food or waterthat hasbeen contaminated with infected poo or droplets.

If the virus gets into your mouth, it travels to your throat and bowels, where it starts to multiply. In some cases, it can also get into the bloodstream and spread to the nervous system.

The virus can be spread by someone with the infection from about a week before any symptoms develop, until several weeks afterwards. Infected people who don't have any symptoms can still pass polio on to others.

There have been rare cases where polio has been caused by being vaccinated with a live version of the polio virus. This is no longer a risk in the UK, because the vaccine used nowadays contains an inactive version of the virus.

Content supplied by the NHS Website

Medically Reviewed by a doctor on 21 Dec 2018