CDC director: No evidence that AY 4.2 subvariant impacts effectiveness of vaccines or therapeutics

CDC director: There's no evidence that AY 4.2 subvariant impacts effectiveness of vaccines or therapeutics There’s no evidence a new sublineage of the Delta variant is having any significant effect in the United States, US Centers for Disease Control and Prevention director Dr. Rochelle Walensky said Wednesday. By <a href="/profiles/melissa-mahtani">Melissa Mahtani</a>, <a href="/profiles/meg-wagner">Meg Wagner</a>, <a href="/profiles/veronica-rocha">Veronica Rocha</a>, Mike Hayes and Melissa Macaya, CNN CNN

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While the AY 4.2 coronavirus subvariant has been identified in the United States, it’s not growing in frequency or causing clusters, Walensky told a White House Covid-19 briefing. 

“At this time, there is no evidence that the sublineage AY 4.2 impacts the effectiveness of our current vaccines or therapeutics,” she said. ...