Investigation of HLA-DRB1 and IL28 gene polymorphism in patients with varying severity of COVID-19 infection

Abstract

The work analyzed the polymorphisms of the HLA-DRB1 and IL28 genes in 100 patients who underwent COVID-19 with the development of infection with varying degrees of severity. To a mild degree of severity were patients without complications in the form of infectious pneumonate, to moderate and severe degrees - with the development of pneumonate with varying degrees of lung damage. In general, the distribution of alleles in patients with COVID-19 did not differ from the distribution of average values in Russia. However, the HLA-DRB1 *01 и *07 alleles were more common. Comparison of the frequency of HLA-DRB1 alleles in patients with COVID-19 with varying severity revealed more common alleles of *13 and *07 in the severety severe group. However, with OR of 3.2 and 1.8, their confidence intervals (CL) were in the range of 0.9-9.8 and 0.7-4.5 respectively. At severe severity, the presence of homozigotic variants of allele *07 is noted. (Fisher exact test, r.0.04). As for the IL28B gene, no statistically significant differences from the control group were found.