The U.S. Centers for Disease Control and Prevention has raised its polio travel advisory to a Level 2 for 32 countries where the disease is spreading.
The CDC is encouraging Americans traveling abroad to make sure they are up to date on their polio vaccines ...
Flu activity is increasing across the country, according to the latest data from the Centers for Disease Control and Prevention. New York City is seeing some of the highest levels of flu-like activity ...
About 92% of cases are among people who are unvaccinated or whose vaccination status is unknown, CDC data shows.
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