ACE2 and COVID-19: A descriptive longitudinal study investigating post-acute COVID-19 sequelae found that the A allele of ACE2 rs2106806 and the T-allele of rs6629110 were significantly associated with increased susceptibility to long COVID (OR = 4.21; 95 % CI 2.52 to 8.85; p < 0.001 and OR = 3.75; 95 % CI 1.78 to 6.10; p = 0.002, respectively).86