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Haber Kaynağı: Çeşitli Haber Siteleri
Sustained Effectiveness of Pfizer-BioNTech and Moderna Vaccines Against COVID-19 Associated Hospitalizations Among Adults - United States, March-July 2021
COVID-19 vaccine effectiveness against hospitalizations was stable for people who received 2 doses, and vaccines remained effective among people with risk for severe COVID-19.
https://tools.cdc.gov/api/embed/downloader/download.asp?m=342778&c=425928
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