Study among US health personnel provides evidence of efficacy of Pfizer and Moderna vaccines

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Study among US health personnel provides evidence of efficacy of Pfizer and Moderna vaccines

The Pfizer and Moderna vaccines against Covid-19 are 90% effective, regardless of symptoms, as shown in a study of nearly 4,000 American healthcare workers published Monday.

29.03.2021 14:16

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2021-03-29T14: 16: 00

2021-03-29T14: 16: 00

Another encouraging news is that partial vaccination, with one dose of either vaccine, resulted in 80% protection against infection two weeks after the first application.

The study conducted by the Centers for Disease Control and Prevention (CDC) looked at the effectiveness of the two vaccines among 3,950 participants in six states from December 14 to March 12.

“This study shows that our national vaccination efforts are working,” said CDC Director Rochelle Walensky.

“Licensed covid-19 mRNA vaccines provided substantial, real-world protection against infection for our nation’s healthcare personnel, first responders and other essential front-line workers,” he noted.

These results add to a growing body of evidence that vaccines not only stop symptomatic disease, but the infection itself, making them an important tool in slowing the spread of the virus.

The study, which included physicians, nurses, emergency responders, and other healthcare workers from Arizona, Florida, Minnesota, Oregon, Texas, and Utah, is ongoing. Scientists will seek to sequence the virus in cases of infection despite vaccination.

With information from AFP

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