In this weeks update you can hear about the adaptive immune response to SARs-CoV 2. You will hear the explanation how a lasting immunity can be created . We all hope this is the case for SARS-CoV2 but nobody knows for sure yet. There is a story about the SARS-CoV 2 receptor called ACE 2 and the possible impact genetic variation and expression variation might have on the infection. Finally a little about Vitamin D and face masks. Enjoy