CCR5 and hantavirus infectious disease: This study reports that the frequency of functional wild type (wt) CCR5 homozygous, CCR5/CCR5 gene with 32-base-pair deletion (Δ32CCR5) heterozygous, and Δ32CCR5 homozygous genotypes is similar between the general population of the Republic of Tatarstan and NE cases, suggesting that susceptibility to hantavirus infection is independent of CCR5 genotype.