US EditionAre you protected? CDC urges polio shots for travelers
CDC issues Level 2 advisory urging vaccination and boosters for travelers to 32 countries due to poliovirus circulation detected in wastewater and recent cases.
- On Mar 6, 2026, the Centers for Disease Control and Prevention issued a Level 2 advisory urging polio vaccination for travelers to 32 countries with virus circulation.
- Declining vaccination rates have increased polio risk globally, with wastewater surveillance detecting the virus in the past 12 months and public-health experts warning unvaccinated travelers could spread it in the U.S.
- The CDC's list includes the United Kingdom, Germany, Poland, Spain, Finland, Israel, Afghanistan and Tanzania, advising travelers to get an adult booster if not yet received after completing the routine polio vaccine series, as officials say the shots are safe and effective.
- Most adults in the United States face near-zero polio risk if fully vaccinated, but the CDC says 95 percent of infections show no symptoms while a small fraction develop severe illness.
- With rising hesitancy, experts warn undervaccination threatens U.S. elimination status, while officials urge travelers to monitor virus circulation and follow updated guidance.
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The international warning comes after epidemiological surveillance systems identified viral circulation in environmental samples and some clinical cases
New Hamburg independent
Travelling from Ontario? These 32 countries have polio travel warnings
The CDC has issued travel advisories for 32 countries due to poliovirus. Canada has flagged 30 countries. See the full list and vaccination requirements.
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