J&J Vaccine: Know the Signs of Rare Blood Clot

While U.S. federal government experts probe potential risks of the Johnson & Johnson vaccine, what do you need to know if you have had the one-dose COVID shot or hope to get it? Experts at the American Heart Association (AHA) describe what to look out for. The U.S. Centers for Disease Control and Prevention and the U.S. Food & Drug Administration paused administration of the J&J
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