Polio Endgame: Innovations in Surveillance

Background: Provides a definition of eradication and of the disease: that it affects mostly children, results in paralysis in some cases and is preventable through vaccination. 

The disease is nearly eradicated, but remains in three countries, which reported 22 cases in 2017. Eradication practices continue with 400 million vaccinations annually. 

Surveillance: Virus detection activities currently take place in 70 countries to both detect new cases and gain evidence for certification of eradication.  

Innovations in environmental surveillance are detailed. 


June 28, 2019

Acute Flaccid Paralysis Surveillance System Evaluation, Ebonyi State Nigeria, 2017

Nigeria is one of the three countries in the world with ongoing wild poliovirus (WPV) transmission, alongside Afghanistan and Pakistan. Nigeria also experiences outbreaks of circulating vaccine-derived poliovirus type 2 (cVDPV2). Following the detection of WPV1 in northern Nigeria in 2016, after more than two years without WPV transmission, the country continues to implement an emergency response to the detected WPV1 and cVDPV2 strains. This resurgence of polio cases underscores the risk posee by low-level undetected transmission and the need to strengthen subnational surveillance.

January 25, 2018

Protecting Australia from Future Polio Outbreaks

The occurrence of global polio is at its lowest level, yet the goal of eradication remains elusive with the ongoing circulation in the three remaining endemic countries. Developed countries have a low index of suspicion for polio – relying on astute clinicians to detect imported cases and high immunisation rates to prevent community outbreaks. Australia, like all polio-free countries, remains at risk of a polio importation until polio is eradicated globally.

November 17, 2017

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