The quickly changing coronavirus has spawned yet another super contagious omicron mutant that’s worrying scientists as it gains ground in India and pops up in numerous other countries, including the United States
Scientists say the variant – called BA.2.75 – may be able to spread rapidly and get around immunity from vaccines and previous infection. It’s unclear whether it could cause more serious disease than other omicron variants, including the globally prominent BA.5.
Still, the fact that it has already been detected in many parts of the world even with lower levels of viral surveillance"is an early indication it is spreading," said Shishi Luo, head of infectious diseases for, a company that supplies viral sequencing information to the U.S. Centers for Disease Control and Prevention.
Fueling experts’ concerns are a large number of mutations separating this new variant from omicron predecessors. Some of those mutations are in areas that relate to the spike protein and could allow the virus to bind onto cells more efficiently, Binnicker said. But experts say vaccines and boosters are still the best defense against severe COVID-19. In the fall it's likely the U.S. will see“Some may say, ‘Well, vaccination and boosting hasn’t prevented people from getting infected.’ And, yes, that is true,” he said. “But what we have seen is that the rates of people ending up in the hospital and dying have significantly decreased.
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