WATCH: Dr. Anthony Fauci remains optimistic for COVID-19 vaccine by late 2020 or early 2021

Dr. Anthony Fauci from the National Institute of Allergy and Infectious Disease said he remains optimistic that there will be one or more safe and effective vaccine candidates by late 2020 or early 2021 during testimony before the House Select Subcommittee on the Coronavirus Crisis July 31.

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