The search for the poliovirus is triggered when any child is found with acute flaccid paralysis. From the most remote communities to the laboratory, the World Health Organization makes sure that the components of the surveillance system work together so that if the poliovirus is circulating anywhere in the world it will be found – and stopped.

Video is also available with subtitles in other languages: Français | عربي | Español |  Português | Japanese | Urdu | Dari&Pashto | 한국

Watch more in the polio eradication animation series