NIH director: In race against Covid, booster shots can help us charge ahead
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“Think of this as you’re running a race—The vaccines came along, we had a chance to get well ahead. But then the delta variant came along, and the virus started catching up. So now we need another super charged boost to get us well ahead,” NIH director Dr. Francis Collins explaining the need for Covid booster shots. Aug. 19, 2021
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