![]() The updated booster was developed based on another variant that is genetically similar to EG.5. Eric Topol, executive vice president of Scripps Research in La Jolla, Calif., said he isn’t overly worried about the variant however, he would feel better if the new vaccine formulation, which is expected to be rolled out in the fall, was already available. Diagnostic tests and treatments such as Paxlovid continue to be effective against it, Dr. Pekosz said.īut EG.5, which has also been called Eris, does not appear to have any new capacities when it comes to its contagiousness, its symptoms or its likelihood of causing severe illness. That mutation “may mean that more people are susceptible because the virus can escape a little bit more of that immunity,” Dr. That advantage may be why EG.5 has become the dominant strain worldwide, and it could be one reason Covid cases have been rising again. ![]() It is a descendant of the Omicron variant XBB.1.9.2 and has one notable mutation that helps it to evade antibodies developed by the immune system in response to earlier variants and vaccines. The variant was identified in China in February 2023 and was first detected in the United States in April. stated in its announcement that, based on the available evidence, “the public health risk posed by EG.5 is evaluated as low at the global level.” “So I think that’s what tempers my concern about this variant, at this point in time.”Įven the W.H.O. for the past three to four months,” said Andrew Pekosz, a professor of molecular microbiology and immunology at Johns Hopkins University Bloomberg School of Public Health. ![]() “It’s a concern that it’s increasing, but it doesn’t look like something that’s vastly different from what’s already been circulating in the U.S. While severe illness in older adults and people with underlying conditions is always a concern, as is long Covid in anyone who gets infected, experts say EG.5 does not pose a substantial threat - or at least no more of one than any of the other major variants currently circulating. So how worried should people be about these variants? EG.5 In August, EG.5 became the dominant variant in the United States, and the World Health Organization classified it as a “variant of interest,” meaning it has genetic changes that give it an advantage and its prevalence is growing.īA.2.86 is much less widespread, making up only a tiny fraction of cases, but scientists are alarmed by how many mutations it carries. Concern is rising about the Covid-19 variants EG.5 and BA.2.86.
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