The latest booster shots provide better protection than original vaccines, CDC data shows ahead of health official’s retirement
The latest real-world study of updated Covid boosters, published in the CDC’s Morbidity and Mortality Weekly Report, offered the first evidence that the new vaccines by Pfizer/BioNTech and Moderna provide better protection compared to the original shots.
When given eight months or more apart, relative vaccine effectiveness of the new boosters compared with the original vaccine shots was 56% among people aged 18-49 years, 48% among those 50-64 years and 43% among people aged 65 and older, the study showed. So far, around 35m updated boosters have been administered across the US, representing around 10% of the total population, as per government data.
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