It's not yet clear whether Delta Plus is more transmissible than Delta.
tears across the globe, scientists are keeping a close eye on its relative: Delta Plus.
India's health ministry said last month that Delta Plus appeared to spread more easily than Delta and might be able to bind more easily to lung cells or resist antibody drugs. But an Indian genomics consortium suggested more recently that Delta's sublineagesthan Delta. As of July 23, India had recorded no more than 70 Delta Plus cases.
"It doesn't terrify me any more, really, than Delta," Andrew Read, a Pennsylvania State University professor who studies the evolution of infectious diseases, said of Delta Plus. In the US, Delta Plus cases peaked in late June at less than 5% of the nation's sequenced cases, according to"If it started to rise in frequency against the Delta variant, that would tell you that it was perhaps on track to take over from Delta - but we're not really seeing that at the moment," Read said. "If it had a big advantage, we'd be seeing it rising in frequency pretty rapidly.
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