Genetic disorders and the occurrence of polymorphisms in genes involved in the immune system, such as human leukocyte antigen (HLA), inflammatory cytokines, and killer-cell immunoglobulin-like receptors (KIR), can be involved in the immune system's response to various pathogens (Nguyen et al. 2020; Fara et al. 2020; Bernal et al. 2021). This evidence concerns the gene KIR3DL2 and hereditary disease.