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Experts: COVID-19 variants may stall herd immunity, but double-masking could help
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Experts warn that variant strains of COVID-19 could slow or stall herd immunity in the United States, but wearing two masks may help prevent that from happening. File Photo by John Angelillo/UPI | License Photo
Feb. 3 (UPI) Hopes that the United States may be approaching herd immunity against COVID-19 may be dashed by the emergence of new variants of the virus, though expanding infection-control measures could solve that problem, experts said Wednesday.
With 26.4 million confirmed cases, and up to 10 times as many actually infected, the 32.8 million people vaccinated against the virus nationally through Tuesday could mean the country is close to herd immunity, according to immunologist David C. Montefiori.
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DURHAM, N.C. (WTVD) Friday, Johnson and Johnson shared the initial trial results of their single-dose COVID-19 vaccine. This has important potential and real world implications both domestically and globally because as many of you are aware of, this is a single shot vaccine in which you start to see efficacy anywhere from 7-10 days following the first and only shot, said Dr. Anthony Fauci during a press conference Friday morning.
In the trial, the shot was 66% effective in preventing COVID-19 with mild symptoms, and 85% effective in preventing severe symptoms and hospitalization. Less than 10% of respondents developed a fever, and there were no reports of severe side effects, including severe allergic reactions.
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