Fully vaccinated people were 11 times less likely to die of COVID-19 and 10 times less likely to be hospitalized since highly contagious Delta became the most common variant, US health authorities said Friday.
The data came from one of three new papers published by the Centers for Disease Control and Prevention, all of which underscored COVID-19 vaccines’ ongoing effectiveness against severe outcomes.
For reasons that are not yet fully clear, data from one of the studies suggests Moderna’s vaccine has offered a slightly higher level of protection in the Delta period.
It comes a day after President Joe Biden announced an aggressive new immunization plan that includes requiring companies employing more than 100 people to either vaccinate their workers or test them weekly.
“As we have shown in study after study, vaccination works,” said CDC director Rochelle Walenksy during a press briefing on Friday.
The first study examined hundreds of thousands of cases in 13 US jurisdictions from April 9 – June 19, the period before Delta was dominant, and compared them to June 20 – July 17.
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