As more research comes out suggesting that reinfection with SARS-CoV-2 is unlikely, an Arterian is wondering if vaccination of people with persistent SARS-CoV-2 antibodies should be temporarily deferred to ensure that higher risk individuals have access to limited vaccine supplies. Respondents agree that this makes sense. However, one respondent thinks that Ig antibodies are not a practical marker for determining who has SARS-CoV-2 immunity, and that it would be more effective to simply say that anyone who has tested positive for SARS-CoV-2 RNA in the past will be vaccinated last.