Moderna’s vaccine offered a slightly higher level of protection.
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People who completed their vaccination schedule were 11 times less likely to die and 10 times less likely to be hospitalized from Covid-19 since the Delta variant became the most common of the virus, US health authorities said. .
The data comes from three new studies published by the Center for Disease Control and Prevention (CDC), who examined the effectiveness of vaccines against the most severe consequences of the disease.
For reasons that are not entirely clear, data from one of the studies suggests that Moderna’s vaccine offered a slightly higher level of protection in the period when the delta variant was prevalent, according to the AFP news agency.
The first study examined hundreds of thousands of cases in 13 jurisdictions between April 9 and June 19, before Delta was dominant.”
The study comes a day after President Joe Biden announced a robust new immunization plan that includes requirements for companies to employ more than 100 workers to get vaccinated. or have them tested weekly. “As we’ve seen in study after study, vaccination works,” said CDC Director Rochelle Walensky.
The first study examined hundreds of thousands of cases in 13 U.S. jurisdictions between April 9 and June 19, before Delta was dominant, and compared them with data collected between June 20 and July 17. .
Protection against the risk of hospitalization remained more stable.
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From one period to the next, The risk of vaccinated people of being infected with Covid increased slightly: they went from being 11.1 times less likely to be infected compared to those who were not vaccinated, to 4.6 times less.
Protection against the risk of hospitalization and death remained more stable, but fell more among those over 65 years with reference to the younger groups.
The CDC and the Food and Drug Administration (FDA) are assessing the need for booster vaccines, and older people are likely to be among the first to receive them when the Biden administration begins distributing them later this month.
One of the studies, which evaluated the effectiveness of the vaccine between June and August in more than 400 hospitals, emergency departments and emergency rooms, examined the effectiveness of each laboratory.
Moderna’s vaccine was most effective against hospitalization at 95 percent; then Pfizer with 80 percent; and finally Johnson & Johnson with 60 percent.
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