inferior to the immunity you have after vaccination. and, in fact, there is growing evidence that natural immunity lasts a long time and highly protective against infection and hospitalization. this is a pandemic now not of the noninfected or non-vaccinated but of the nonimmune. second point is the study that dr. collins quoted did not have anything to do with people who had been vaccinated or had natural immunity. what it proved that if you were previously infected, your chance of getting covid in the middle of delta in kentucky was about one in 1,000 to get covid again. if you got vaccinated that dropped it to 1 in 2500. so that's a reduction. but, still, your risks were very, very low. >> trace: i want to quote this from the cdc study. because it sounds like they included both. this report details the finding of the case controlled evaluation of the association between vaccination and sars cov