Article ; Online: Role of ABO blood system in COVID-19: Findings from a southern Italian study.
Transfusion medicine (Oxford, England)
2021 Volume 32, Issue 3, Page(s) 243–247
Abstract: ... Our findings support a role of ABO blood type in the development of symptomatic disease with a higher risk ... of ABO blood system in the susceptibility to infection as well as in the clinical outcome of infected ... represented by 891 subjects negative for SARS-CoV-2, to assess the association between ABO and Rh blood system ...
Abstract | Background: COVID-19 is a worldwide infection caused by SARS-CoV-2 and infects humans by binding to the ACE2 receptor. Blood group ABO glycoproteins can influence the binding of the virus to ACE2. The role of ABO blood system in the susceptibility to infection as well as in the clinical outcome of infected patients is still controversial and needs to be clarified. Methods: We conducted a retrospective study of 167 patients positive for SARS-CoV-2 who underwent nasopharyngeal swab, and of a control group represented by 891 subjects negative for SARS-CoV-2, to assess the association between ABO and Rh blood system and occurrence of SARS-CoV-2 infection, clinical presentation, and outcome of disease. Results: In the cohort of patients positive for SARS-CoV-2, no statistically significant difference in the distribution of ABO blood types compared with controls was observed. Patients with blood type A had a higher risk of developing symptomatic disease (p = 0.002; odds ratio [OR = 3.592]; 95% confidence interval [CI] = 1.576-8.187) compared to patients with blood types B, AB, and O. Patients with blood types B (p = 0.021; OR = 0.293; 95%CI = 0.099-0.869) and O (p = 0.018; OR = 0.417; 95%CI = 0.199-0.871) showed a lower risk in comparison to the other groups. The clinical progression to mild/moderate and severe/critical disease and the mortality showed no association. Moreover, no relationship with Rh blood type was found. Conclusions: Our findings support a role of ABO blood type in the development of symptomatic disease with a higher risk in subjects with blood type A and a protective effect of blood types B and O. Blood types do not seem, however, to play a role in susceptibility, progression to severe disease, and death. |
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MeSH term(s) | ABO Blood-Group System ; Angiotensin-Converting Enzyme 2 ; COVID-19/blood ; Humans ; Retrospective Studies ; SARS-CoV-2 | |||||
Chemical Substances | ABO Blood-Group System ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23) | |||||
Language | English | |||||
Publishing date | 2021-06-10 | |||||
Publishing country | England | |||||
Document type | Journal Article | |||||
ZDB-ID | 1067989-3 | |||||
ISSN | 1365-3148 ; 0958-7578 | |||||
ISSN (online) | 1365-3148 | |||||
ISSN | 0958-7578 | |||||
DOI | 10.1111/tme.12797 | |||||
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Database | MEDical Literature Analysis and Retrieval System OnLINE |
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