Dr. Fauci: Vaccine distribution will be 'very different than the situation that you’ve seen with testing’

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Dr. Anthony Fauci provides Andrea Mitchell with the latest developments on vaccine delivery and distribution, telling Andrea the preliminary data indicates there is "a very good chance" a safe and effective vaccine would be ready for distribution going into 2021 and that priority would be given to "those people who need it the most," namely health care providers and individuals who are at risk for serious disease, such as the elderly and those with underlying conditions.