Omicron Mutation BA.2.75 Raises Concerns Over Speed of Transmission

Scientists have raised concerns about the newly discovered Omicron  subvariant BA.2.75 which could spread  more rapidly and bypass immunity from vaccines and previous infections.

“It’s still really early on for us to draw too many conclusions. But it does look like, especially in India, the rates of transmission are showing kind of that exponential increase,” said Matthew Binnicker, director of clinical virology at the Mayo Clinic in Rochester, Minnesota..

BA.2.75 was first detected in India last May  and has already spread to at least 10 countries in Asia, Europe, North America, and Australia.

A CDC spokesperson confirmed that two confirmed BA.2.75 cases have been detected in the U.S.since June 14. 

Marc Johnson, PhD, a professor of molecular microbiology and immunology at the University of Missouri’s school of medicine however, clarified that they have yet to determine if BA.2.75 is more transmissible or more severe compared to other COVID-19 strains.

“What we do know is that it has amino acid changes that allow it to evade particular neutralizing antibodies,” Johnson added.


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