Here is the CDC guidance saying that those previously infected with Covid should get vaccinated. https://www.cdc.gov/coronavirus/2019-ncov/vaccines/faq.html https://news.uchicago.edu/story/do-i-need-vaccine-if-ive-already-had-covid-19 https://www.theguardian.com/world/2021/jul/23/phe-upgrade-delta-variants-risk-level-due-to-reinfection-risk Now some anecdotes. https://www.nbcnews.com/politics/politics-news/gop-congressman-says-he-has-covid-19-second-time-n1274971