The Delta variant is likely to outcompete Mu, Lambda and other variants because it is so infectious, scientists say. “Nothing so far has appeared competitive to Delta.”
on Aug. 30, one notch below the “variant of concern” designation.
In the earliest waves of the pandemic, as SARS-CoV-2 spread quickly, there wasn’t much genetic variation in the virus because it didn’t face the neutralizing antibodies produced by immunity, said Theodora Hatziioannou, a virologist at Rockefeller University in New York. Scientists in her lab used tests to recapitulate virus evolution in infected people and found that most mutations were geared toward helping the virus get around neutralizing antibodies. The accumulation of too many mutations came at the expense of maximizing transmission, they found.
“If the virus acquires too many mutations that make it resistant to everything, it will also affect its ability to replicate,” she said.Is the Delta variant of the Covid-19 virus causing you to change your plans to travel, shop or dine indoors? If so, how? Join the conversation below.
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