A flood of new research suggests that far more people have had the coronavirus without any symptoms, fueling hope that it will turn out to be...
BEIJING — World health officials expressed “great concern” Wednesday that a dangerous new virus is starting to spread between people outside of China, a troubling development...
LOS ANGELES — A quarantine at two Los Angeles universities affected more than 200 students and staff who may have been exposed to measles and either...
NEW YORK — The number of U.S. measles cases through the first three months of this year have surpassed the count for all of 2018, health...
Five years after Colorado first legalized marijuana, a new study shows pot’s bad effects are sending more people to the emergency room. Inhaled marijuana caused the...
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