Similarly, there was a trend toward higher median AT1R-Ab level in all COVID-19 cases versus controls (median 9.8 vs. 6.1 U/mL, p = 0.06), and significantly higher AT1R-Ab level amongst the subset of mild COVID-19 cases versus matched controls (median 10.7 vs. 5.9 U/mL, p = 0.03). Here, AGTR1 is linked to COVID-19.