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CBSNews.com
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2021

Doctor on COVID-19 variants, vaccine efficacy and travel guidelines

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With air travel increasing around the U.S., some are questioning if it's safe to travel once vaccinated. Dr. Susannah Hills spoke with Anne-Marie Green and Vladimir Duthiers on CBSN about what to know before you travel abroad and how the pandemic may progress based on new data from the World Health Organization.














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