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In the 1950s, as Dr. Jonas Salk and virologist Albert Sabin worked to create a vaccine to prevent infantile paralysis, the threat from polio was already long familiar to Americans.
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Dr. Anthony Fauci says it's "conceivable" a coronavirus vaccine could be ready within months but cautions "when you're dealing with vaccines, there could be so many things that get in the way."
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Experts say the Communist Party sees more at stake than public health. One of the biggest concerns is the economy. China is also looking to defuse criticism over its early handling of the outbreak.
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This is the story of what it takes to produce a national vaccine supply.
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Cambridge, Mass.-based Moderna, Inc., is reporting preliminary data suggesting its COVID-19 vaccine is safe, and appears to be triggering an immune response in test subjects.
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The president says he hopes the initiative will develop a treatment for COVID-19 by early next year, a timeline that experts have called optimistic.
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An uproar followed comments by Sanofi's CEO that if the company develops a vaccine, doses would likely go to Americans first. The board president later insisted, "Any vaccine will be a public good."
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The race is on. What will it take to develop, test and distribute a safe and effective vaccine?
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The vaccine, developed in a partnership between the pharmaceutical giant and a German biotech company, began trials on Monday with 360 volunteer subjects.
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Noting that trials are still in the early phase, Dr. Anthony Fauci says the plan is to develop a vaccine that is safe and effective — and can be quickly scaled up for distribution.