Poliovirus Detected in Wastewater Across More German Cities

Health authorities report findings of vaccine-derived poliovirus in Berlin and Stuttgart, raising concerns about potential transmission risks.

Poliovirus traces have been detected in wastewater samples from Berlin and Stuttgart, with testing conducted between November and December 2024.
The detected viruses are vaccine-derived strains linked to the oral polio vaccine, which can be shed by vaccinated individuals for up to six weeks.
Germany discontinued the use of the oral polio vaccine, but unvaccinated or insufficiently immunized individuals remain at risk of infection.
Similar findings have been reported in other European countries, including Spain, Poland, the UK, and Finland, though the extent of the issue remains unclear.
The Robert Koch Institute urges the public to ensure polio vaccinations are up-to-date to prevent potential outbreaks in previously polio-free regions.