AGTR1 and COVID-19: AT1R-Ab status in the SARS-CoV-2 negative individuals was not associated with reactivity to SARS-CoV-2 Spike trimer (17% AT1R-Ab negative vs. 22% AT1R-Ab positive, p = 0.8) In addition, some AT1R-Ab positive individuals demonstrated low level reactivity against RBD (17% AT1R-Ab negative vs. 22% AT1R-Ab positive, p = 0.8) and NP (17% AT1R-Ab negative vs. 44% AT1R-Ab positive, p = 0.3), with levels lower than COVID-19 cases (Fig 3).