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Updated: May 5, 2026

Cost-effective Method for Microbial Source Tracking Using Specific Human and Animal Viruses
Published on: December 3, 2011
Detection of vaccine-derived poliovirus type 2 from sewage samples and public health response, Poland, November to
Magdalena Wieczorek1, Beata Gad1, Arleta Krzysztoszek1
1Department of Virology, National Institute of Public Health NIH - National Institute of Research, Warsaw, Poland.
Abstract:
In October and December 2024, circulating vaccine-derived poliovirus type 2 (cVDPV2) was detected from two wastewater samples in Poland during routine environmental surveillance. The first isolate was characterised and matched previous cVDPV2 isolates detected in Spain in September, as well as in Germany, Finland, and the United Kingdom in November and December 2024. In response to the event, active surveillance for acute flaccid paralysis (AFP) has been strengthened, and the frequency of environmental sample collection has been increased.

