5 things we know and still don't know about COVID, 5 years after it appeared
Five years after the virus that causes COVID emerged in China it still holds some mysteries.
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The CDC has relaxed COVID guidelines. Will schools and day cares follow suit?
Four years after the COVID-19 pandemic closed schools, the CDC says parents can start treating the virus like other respiratory illnesses.
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Older US adults should get another COVID-19 shot, advisers say
Older U.S. adults should roll up their sleeves for another COVID-19 shot, even if they got a booster in the fall, an influential government advisory panel said.
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Newest COVID shots are 54% effective in preventing symptoms, CDC finds
The latest COVID-19 vaccines are 54% effective at preventing symptomatic infection in adults.
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In a break with CDC, California quietly changed its Covid isolation guidelines
In California, a person who tests positive for Covid and has no symptoms does not need to isolate, according to new state health guidelines.