Poliovirus Remains a Risk in 32 Countries

Recently, the World Health Organization stated that available data indicate that during 2024 and 2025, poliovirus has spread geographically alongside continued transmission within core reservoir areas in both polio-endemic countries.

To highlight this severe health risk, the U.S. CDC updated its Level 2 - Practice Enhanced Precautions notice, which now identifies 32 countries. 

This list includes Germany, Israel, and the United Kingdom.

The CDC statement issued on November 25, 2025, says that before traveling to any destination listed, adults who previously completed the entire routine polio vaccine series may receive a single, lifetime booster dose of polio vaccine.

When departing from the USA, polio vaccination services are offered at travel clinics and pharmacies.