Let's Talk about the Pfizer Vaccine with Dr Onyema Ogbuagu

Here's today’s #BigHardFact:  COVID-19 is the first disease against which an RNA Vaccine has been proven to be effective.  What Do You Want To Know About The COVID-19 Vaccines?  Let's talk with Dr Ogbuagu, Principal Investigator on Yale University's Pfizer/BioNTech Vaccine trial