Increasing evidence points to host genetics as a factor in COVID-19 prevalence and outcome. CCR5 is a receptor for proinflammatory chemokines that are involved in host responses, especially to viruses. The CCR5-delta32 minor allele is an interesting variant, given the role of CCR5 in some viral infections, particularly HIV-1. Recent studies of the impact of CCR5-delta32 on COVID-19 risk and severity have yielded contradictory results. This ecologic study shows that the CCR5-delta32 allelic frequency in a European population was significantly negatively correlated with the number of COVID-19 cases (p=0.035) and deaths (p=0.006) during the second pandemic wave. These results suggest that CCR5-delta32 may be protective against SARS-CoV-2 infection, as it is against HIV infection, and could be predictive of COVID-19 risk and severity. Further studies based on samples from populations of different genetic backgrounds are needed to validate these statistically obtained findings.
- MeSH
- COVID-19 genetika imunologie mortalita virologie MeSH
- fenotyp MeSH
- frekvence genu MeSH
- genetická predispozice k nemoci MeSH
- interakce hostitele a patogenu MeSH
- lidé MeSH
- mutace * MeSH
- ochranné faktory MeSH
- prevalence MeSH
- receptory CCR5 genetika MeSH
- rizikové faktory MeSH
- SARS-CoV-2 imunologie patogenita MeSH
- stupeň závažnosti nemoci MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Evropa MeSH
