In this week’s segment of “Make it Make Sense,” Dr. Chris Pernell explains why those with some level of natural immunity after recovering from COVID-19 should still get vaccinated. » Subscribe to MSNBC: http://on.msnbc.com/SubscribeTomsnbc MSNBC delivers breaking news and in-depth analysis of the headlines, as well as informed perspectives. Find video clips and segments from The Rachel Maddow Show, Morning Joe, Hardball, All In, Last Word, 11th Hour, and more. Connect with MSNBC Online Visit msnbc.com: http://on.msnbc.com/Readmsnbc Subscribe to MSNBC Newsletter: MSNBC.com/NewslettersYouTube Find MSNBC on Facebook: http://on.msnbc.com/Likemsnbc Follow MSNBC on Twitter: http://on.msnbc.com/Followmsnbc Follow MSNBC on Instagram: http://on.msnbc.com/Instamsnbc Are Unvaccinated Covid-19 Survivors Protected Against Re-Infection?