What are the retention plans for the covid-19 variants

Renowned virologist Shane Crotty, PhD joins us again to address the most important COVID-19 questions: Should people who’ve been vaccinated or had COVID-19 continue to wear masks and physically distance? How will each vaccine hold up to the SARS-CoV-2 variants? What does the research say about people who’ve already had COVID-19 who get a vaccine? How long will immunity last for the vaccines or COVID-19 infection?