IL10 and COVID-19: After adjusting the association of IL10 rs1800871 polymorphism with SARS-CoV-2 variants, the CC genotype (OR 3.92, 95% CI 2.64–5.82) in the Alpha variant and CT genotype (OR 1.32, 95% CI 1.01–1.73) in the Delta variant had a relationship with COVID-19 mortality; however, there was no association between rs1800871 polymorphism with the Omicron BA.5 variant (Table 3).