The length of time you spend around a person with COVID-19 seems to heavily influence your likelihood of getting sick, according to a recent Nature study that has been peer-reviewed but not fully edited. Most exposures that result in transmission last at least an hour, if not much longer, the researchers say.
The latest calculations from several science agencies showing Earth obliterated global heat records last year may seem scary. But scientists worry that what’s behind those numbers could be even worse.
Bivalent (two-strain) COVID-19 vaccines help protect against COVID-19–related thromboembolic events, including strokes, embolisms, and heart attacks, more so than monovalent (one-strain) vaccines, according to a study today in Morbidity and Mortality Weekly Report.
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