The Centers for Disease Control and Prevention has updated its travel advisory regarding polio, expanding the list to include 30 locations where the virus has been found within the past 13 months.

The updated advisory reflects recent surveillance data showing polio activity in various global locations, prompting health officials to revise travel recommendations for Americans planning international trips.

Dr. William Schaffner, a professor of medicine at Vanderbilt University Medical Center, discussed the implications of the expanded advisory, highlighting the importance of vaccination and awareness for travelers to affected regions.

The CDC regularly monitors global disease outbreaks and updates travel advisories based on current epidemiological data. Polio, while largely eradicated in many parts of the world, continues to circulate in certain areas, making vaccination and travel precautions essential for international travelers.

The expanded advisory comes as health authorities maintain vigilance against vaccine-preventable diseases that could pose risks to unvaccinated or inadequately vaccinated travelers visiting affected regions.