A new COVID-19 variant, BA.2.86 (nicknamed Pirola) may cause breakthrough infections, according to a new CDC risk assessment. There have been nine confirmed cases of BA.2.86 worldwide—two of those cases have been in the United States.
“The virus uses the spike protein to bind the disease to cells,” Murphy said. “That’s what the vaccines are directed against.”
, MD, an infectious disease specialist and professor at the Vanderbilt University School of Medicine, told“Initially, officials thought that BA.2.86 was not all that much different but, now that they’ve noted there are many mutations, they’ve at least raised the question about whether there may be some immune evasion on the part of this strain,” Schaffner said.it’s “too soon to know the real-world impacts on immunity” of BA.2.86.
“We have no lab data or experimental data whatsoever to say how this will impact immunity,” Murphy said. “It simply hasn’t been studied at this point, but likely will be soon.” Meanwhile, existing treatments for older COVID-19 strains can most likely provide relief for patients who are infected with BA.2.86.
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