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CNN CNN Newsroom With Ana Cabrera October 5, 2021 17:23:00

Data which really does seem to suggest that the pfizer vaccine increases in efficacy over time. it doesnt seem to be the same increase with the j&j vaccine. >> and i wanted to ask you about that because theres a new real life study that really confirms the standard two doses of the pfizer vaccine. it holds strong over time for protection against hospitalization and death at 90%. but its protection against the mile infection, so any kind of symptom, it wanes significantly over time, down to 47% e...
It Doesn T Real Life Study Booster Shots Breakthrough Infections

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