USC researchers have found what appears to be the likely order in which COVID-19 symptoms first appear: fever, cough and muscle pain, then nausea and/or vomiting, then diarrhea.
With a coronavirus vaccine still months off, companies are rushing to test what may be the next best thing: drugs that deliver antibodies to fight the virus right away, without having to train the immune system to make them.
ROME (AP) — The number of confirmed coronavirus cases worldwide topped 20 million, more than half of them from the United States, India and Brazil, as Russia on Tuesday became the first country to approve a vaccine against the virus.
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