Why worrisome coronavirus mutations may soon hit their limit

Coronavirus model.
(Image credit: iStock.)

The novel coronavirus that sparked the ongoing COVID-19 pandemic will continue to evolve over time, but it may be running out of the type of worrisome tricks seen in mutations first sequenced in the United Kingdom, Brazil, and South Africa, Dr. Dhruv Khullar writes in The New Yorker.

All three variants are troubling because of a change to the "spike" protein that allows the virus to latch on to humans' ACE-2 receptor and enter human cells more easily, making it more transmissible. And the Brazilian and South African variants carry an additional mutation which diminishes the ability of antibodies to bind to and neutralize the virus, possibly rendering previous infection and vaccines less effective, Khullar writes. There is good news, though — at least in the eyes of Jason McLellan, a structural biologist at the University of Texas at Austin, who believes such mutations may be few and far between going forward.

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Tim O'Donnell

Tim is a staff writer at The Week and has contributed to Bedford and Bowery and The New York Transatlantic. He is a graduate of Occidental College and NYU's journalism school. Tim enjoys writing about baseball, Europe, and extinct megafauna. He lives in New York City.