Three coronavirus variants — Lambda, Mu, and C.1.2 — have raised red flags among scientists lately. The variants show signs of being highly transmissible, able to circumvent vaccine protection, or ...
This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. A review of coronavirus specimens collected ...
Recent studies have shown that the effectiveness of Covid-19 vaccines is decreasing, though experts say the shots still work well. WSJ explains what the numbers mean and why they don’t tell the full ...
As cases of the delta variant continue to raise concerns across the U.S. and a new variant is monitored by the World Health Organization, many are wondering what variants are out there and which we ...
Almost every country in South America has seen a drop in new COVID-19 case numbers—with the situation marking a stark contrast to tallies seen just weeks ago. The continent is where some of the ...
South African scientists identified a new version of the coronavirus this week that they say is behind a recent spike in COVID-19 infections in the country's most populous province. In a statement on ...
The virus that causes COVID-19 has stopped worming its way through the Greek alphabet — for now. The alpha, beta, gamma and epsilon variants of SARS-CoV-2 have been downgraded by the Centers for ...
The Delta variant makes up 99% of new Covid-19 cases in the U.S. and is likely to outcompete variants like Mu and Lambda; a drive-up testing site in Kentucky on Wednesday. (Jeffrey Scott ...
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