Poliovirus Detected in European Wastewater: A Reminder of Global Threat
Frankfurt, Germany – The specter of polio, a debilitating disease once seemingly eradicated in Europe, has resurfaced. Routine surveillance of wastewater systems has detected circulating vaccine-derived poliovirus type 2 (VDPV2) in three countries: Germany, Poland, and Spain. While no paralytic cases have been reported, these detections serve as a stark reminder of the persistent global threat posed by poliovirus and the vulnerability of even highly vaccinated regions.
A Silent Stalker:
Poliovirus, a highly infectious pathogen, can spread silently across borders, quietly infiltrating communities with low vaccination rates. The recent detections in Europe highlight this unsettling reality, underscoring the need for continued vigilance and robust vaccination programs.
"These countries are to be commended for their strong vigilance, which enabled them to detect and quickly respond to this public health threat," stated Robb Butler, Director of the Division of Communicable Diseases, Environment and Health at WHO/Europe. "While investigation of these detections is ongoing, WHO will continue to work with all countries in the Region to strengthen poliovirus surveillance and ensure high immunization rates."
Tracing the Origins:
The detected VDPV2 strain in Europe has been genetically linked to a strain originating in Nigeria, signifying the interconnected nature of global health. This strain is currently circulating in several countries outside the Region, primarily in North and West Africa. The detection in European wastewater samples, however, indicates its ability to travel vast distances.
A Regional Response:
Despite the absence of paralytic cases, the European region is taking these detections seriously. All countries actively monitor sewage systems for poliovirus, enabling early detection and swift response. Germany, Poland, and Spain, all boasting high routine immunization coverage (estimated at 85–93% nationally with 3 doses of Inactivated Polio Vaccine), immediately initiated investigations to identify potential pockets of unvaccinated individuals and are actively immunizing these vulnerable populations.
The Imperative of Eradication:
The recent detections underscore the urgent need for global polio eradication.
Polio, a debilitating disease that can cause lifelong paralysis or even death, has no cure. Vaccination remains the most effective weapon against this scourge.
WHO/Europe, in partnership with the Global Polio Eradication Initiative partners, is actively supporting national and local public health authorities in their investigations, monitoring the situation, and responding rapidly to any detections to prevent further spread.
A Call to Action:
These detections serve as a potent reminder that the fight against polio is far from over. Maintaining high vaccination rates, strengthening surveillance systems, and continued global cooperation are crucial to achieving the ultimate goal of a world free from polio.
What are your thoughts on the resurgence of poliovirus in European wastewater? Share your comments below and help spread awareness about the importance of vaccination.
