Researchers find two new coronavirus variants in U.S.

Researchers find two new coronavirus variants in U.S.

Researchers in Ohio said that they’ve discovered two new variants of the coronavirus that likely originated in the U.S. - one of which quickly became the dominant strain in Columbus, Ohio, over a three-week period in late December and early January.

Like the strain first detected in the U.K., the U.S. mutations appear to make Covid-19 more contagious but do not seem like they will diminish the effectiveness of the vaccines, researchers said.

The Ohio State University researchers have not yet published their full findings, but said a non-peer-reviewed study is forthcoming. Spokesman for the Centers for Disease Control and Prevention Jason McDonald said that the agency is looking at the new research.

One of the new strains, found in just one patient in Ohio, contains a mutation identical to the now-dominant variant in the U.K., researchers said, noting that it “likely arose in a virus strain already present in the United States." However, the 'Columbus strain', which the researchers said in a press release has become dominant in the city, includes "three other gene mutations not previously seen together in SARS-CoV2."

“This new Columbus strain has the same genetic backbone as earlier cases we’ve studied, but these three mutations represent a significant evolution,” Dr. Dan Jones, vice chair of the division of molecular pathology at Ohio State and lead author of the study, said in a statement. “We know this shift didn’t come from the U.K. or South African branches of the virus,"  CNBC cited him as saying.

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