Real-world studies show updated Covid-19 boosters offer important protection against urgent care visits and hospitalizations – CNN

by | Dec 16, 2022 | COVID-19

CNN
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Although the updated Covid-19 vaccines don’t offer complete protection against a trip to the hospital or urgent care, they do offer important defense against the virus, particularly for seniors, two new studies show.

“Both studies show that there’s quite an important benefit from the bivalent booster that it’s adding quite a lot of extra protection against hospitalization due to Covid-19,” said Ruth Link-Gelles, an epidemiologist at the US Centers for Disease Control and Prevention who co-authored one of the studies. The studies published on Friday in the CDC’s Morbidity and Mortality Weekly Report.

The bivalent boosters made by Moderna and Pfizer/BioNTech target the original coronavirus strain and the Omicron BA.4 and BA.5 subvariants. The shots became available in early September.

The bivalent boosters appear to provide strong protection – up to 84% – against hospitalizations for seniors. When the analysis included younger adults, they provided moderate protection against needing to go to the emergency room or hospital.

In one study, which included adults 65 and older who didn’t have compromised immune function and who had been hospitalized for Covid-19, researchers estimated the bivalent boosters were 84% effective against hospitalization compared with being unvaccinated, and 73% effective at preventing hospitalizations compared with two or more doses of the original Covid-19 vaccines.

The study drew its data from 798 patients who were admitted to 22 hospitals in 18 states between September 8 and November 30.

Adults 65 and over have always been among the most vulnerable to Covid-19, and current hospitalization data shows that seniors are again being hit the hardest …

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