A sign at the Centers for Disease Control and Prevention headquarters in Atlanta, Ga., on Aug. 25, 2023. Madalina Vasiliu/The Epoch Times
Poliovirus has been spreading in dozens of countries, the U.S. Centers for Disease Control and Prevention said in a March 3 travel warning.
People planning trips to more than 30 countries, including some in Europe, should be aware of the circulation of the virus, the CDC said.
