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One Underlying Threat Could Cancel the Effectiveness of Any COVID-19 Vaccine

  As the world sits on the precipice of what some health officials say is the only answer to the COVID-19 pandemic — a vaccine — health officials are worrying that one underlying factor could cancel the effectiveness of any vaccine they produce. That factor? Obesity. In the U.S. alone, more than 107 million adults are obese, and obesity is a known high-risk factor for contracting COVID-19. In fact, Kaiser Health reports that those who are 100 pounds or more...