Vaccine . Joining us to explore this and other dwolts, is dr. Chin hong. Thanks for joining us. My pleasure. Thanks for having me on. This is a worrisome idea, that you can get infected, recover, and get reinfected. Hes 25 years old. Had no other medical history. Got infected like many people did in march. One to two months later when he visited some relatives, people were sick. Help got reinfected again. They did genetic analyses on both of them and they were both dirchlts. And he was sicker the Second Time Around. Sicker the Second Time Around. All right. Do we know if the Second Time Around it was the same strain or a different strain . We think that it was very slightly different but not different enough so that his existing immunity wouldnt have been effective if it were in place. The most like reply explanation is that his immunity roy ned. N. That comes back to what scientist say its really unpredictable how long the immunity would last. This week weve been hearing President Tru