Abstract
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.
【초록키워드】 COVID-19, viruses, pandemic, SARS-COV-2 infection, severity, host genetics, variant, risk, chemokines, outcome, viral infections, genetics, chemokine, Population, Prevalence, proinflammatory, HIV-1, death, receptor, CCR5, Protective, HIV infection, Evidence, Frequency, host responses, Predictive, in some, Factor, COVID-19 case, European population, allele, genetic background, recent, significantly, involved, correlated, allelic, Increasing, statistically, 【제목키워드】 SARS-CoV-2, Mutation, Protective,