Dengue fever (DF), an emerging and re-emerging viral disease, is a major public health problem. The aim of this study was to investigate the influence of KIRs genes polymorphism and KIRs genotypes in susceptibility to dengue virus infection and disease severity in a population from Burkina Faso through a case-control study.
KIRs genes determination was performed using PCR-SSP in 50 patients infected by dengue virus (DENV) and 54 Healthy controls (HC) subjects who had never been infected.
Data analysis showed significant association between frequencies of three KIR genes and dengue virus infection (DF): KIR2DL2 (OR: 7.32; IC: 2.87–18.65; P < 0.001); KIR2DL5A (OR: 15.00, IC: 5.68–39.59; P < 0.001) and KIR2DL5B (OR: 11.43; IC: 4.42–29; P < 0.001). While, KIR3DL3 (OR: 0.13, IC: 0.052–0.32; P < 0.001) and KIR2DS5 (OR: 0.12; IC: 0.04–0.30; P < 0.001) were associated with protection against DF. KIR2DL4 (OR: 9.75; IC95%: 1.33–70.97; p: 0.03) and KIRD3DL1 (OR: 12.00; IC95%: 1.60–90.13; p: 0.02) were associated with an increased risk in the development of secondary dengue infection (SDI).
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