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Browsing Tag

Covids

Caught within the Crossfire Over Covid’s Origins

In the early days of the pandemic, scientists reported one comforting property of the new coronavirus: it appeared to be very stable. The virus didn't mutate very quickly, making it an easier target for treatments and vaccines.At the time,…

Covid’s Beta Variant: Here is What We Know

England lifted nearly all of its pandemic restrictions on Monday, which some Britons have hailed as “freedom day.” The British government, however, made a notable exception: People traveling to England from France must continue to…

Covid’s Delta Variant: What We Know

The super-contagious Delta variant of the coronavirus is now responsible for about one in every five Covid-19 cases in the United States, and its prevalence has doubled in the last two weeks, heath officials said on Tuesday.First identified…