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Can’t those who are vaccinated spread COVID?Not so fast



(news)
– For a short period of time last week, the CDC seemed to convey to us the news that we have been waiting for: Dr. Rochelle Varensky, the director of the agency, said that about vaccinating nearly 4,000 people On Monday, “Our data…shows that… people who have been vaccinated do not carry the virus and are not sick”, so, according to many headlines, they cannot spread or spread COVID-19. But scientists quickly pushed back this idea. New York Times, And the CDC itself subsequently backed off Walensky̵

7;s comments. Bottom line? Experts say we don’t even know. Although the data clearly shows that no matter which brand of coronavirus vaccines can effectively prevent serious illness and death, it is not clear how effectively they actually prevent infection, and if the vaccinated person can still be infected, they still Can spread viruses.

Experts point out that no vaccine is 100% effective, and Walensky’s comments may lead some people to think they are effective. They said it is important to obtain correct statistics because if people mistakenly believe that vaccines are 100% effective, they may stop taking public health measures such as wearing masks. Then there is the issue of variants. Variants are spreading around the world. For some variants, it may be possible to escape the vaccine. In 21 universities, including Colorado Boulder University, a study aimed to determine whether the Moderna vaccine can prevent the spread of COVID. An epidemiologist told Quartz last month that he estimated that the question would be answered in “the next few months”, and the site provided brief descriptions of many ongoing population-level vaccine research. (Read more stories about coronavirus vaccines.)




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