Update on Vaccine Derived Polioviruses, Worldwide, January 2017-June 2017

Friday, 3rd of November 2017 Print

The current number of the  Weekly Epidemiological Record gives an update, by WHO and CDC authors, of the current status of vaccine derived polioviruses. In 2017 to date, cVDPV cases have outnumber wild polioviruses. The second graphic shows annual VDPV cases from 2000 onwards. There was a gratifying decline in such cases in 2016, but that decline has not beeu sustained in 2017.

Full text, with graphics, is at


Good reading.

The Webmaster