Mutations

Not all Covid waves look the same: a snapshot of the Delta surge - STAT National data show that unvaccinated adults were hospitalized for Covid at a rate 12 times higher than the fully vaccinated. Eric Boodman STAT

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New lab tool spotlights mutation that speeds spread of Delta variant

As the world has learned to its cost, the Delta variant of the pandemic coronavirus is more than twice as infectious as previous strains. Just what drives Delta’s ability to spread so rapidly hasn’t been clear, however. Now, a new lab strategy that makes it possible to quickly and safely study the effects of mutations in SARS-CoV-2 variants has delivered one answer: a little-noticed mutation in Delta that allows the virus to stuff more of its genetic code into host cells, thus boosting the chances that each infected cell will spread the virus to another cell.

What is the 'delta plus' variant of the coronavirus? What is the “delta plus” variant? It’s a relative of the delta variant, identified by British scientists last month. Because it isn't a variant of interest or concern, it has not yet been officially named after a letter of the Greek alphabet, like the other worrisome variants. AP NEWS

What is the “delta plus” variant?

It’s a relative of the delta variant, identified by British scientists last month.