ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2021
Relationship Between the ABO Blood Group and the Coronavirus Disease 2019 (COVID-19) Susceptibility.
Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 295 papers, 9 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
295 citing papers in PubMed, 9 syntheses or guidelines pooled it.
- Mucosal immune response in biology, disease prevention and treatment.Signal transduction and targeted therapy · 2025Pooled it
- Genetic and Epigenetic Determinants of COVID-19 Susceptibility: A Systematic Review.Current medicinal chemistry · 2025Pooled it
- Superspreading of SARS-CoV-2: a systematic review and meta-analysis of event attack rates and individual transmission patterns.Epidemiology and infection · 2024Pooled it
- Pooled it
- Systematic review of host genetic association with Covid-19 prognosis and susceptibility: What have we learned in 2020?Reviews in medical virology · 2022Pooled it
- Iron dysregulation in COVID-19 and reciprocal evolution of SARS-CoV-2: Natura nihil frustra facit.Journal of cellular biochemistry · 2022Pooled it
- Polymorphisms and mutations of ACE2 and TMPRSS2 genes are associated with COVID-19: a systematic review.European journal of medical research · 2022Pooled it
- Causal Association and Shared Genetics Between Asthma and COVID-19.Frontiers in immunology · 2022Pooled it
- Systematic review and meta-analysis of the susceptibility of ABO blood group to COVID-19 infection.Transfusion and apheresis science : official journal of the World Apheresis Association : official journal of the European Society for Haemapheresis · 2021Pooled it
- ABO blood types and SARS-CoV-2 infection assessed using seroprevalence data in a large population-based sample: the SAPRIS-SERO multi-cohort study.Scientific reports · 2023Trial
- The impact of ABO blood groups on clinical outcomes and susceptibility to COVID-19: A retrospective study in an unselected population.Transfusion · 2021Trial
- Association of ABO/Rh Blood Groups and ABO Gene VariantsViruses · 2026Article
- Blood Group Antigen Combinations and COVID-19: Complexity, Associations and Possible Clinical Relevance.Life (Basel, Switzerland) · 2026Article
- Association between ABO blood groups and clinical manifestations and outcomes of COVID-19: a retrospective cross-sectional study in southeast Iran.Scientific reports · 2026Article
- Strong effect of Anti-COVID-19 vaccination on the peak titer of antibodies against novel coronavirus: factors affecting humoral immunity in Georgian plasma donors.BMC research notes · 2026Article
- Psychomotor and neurofunctional sequelae after COVID-19.Acta neuropsychiatrica · 2026Article
- The impact of COVID-19 on blood supply-demand balance and the association between group donations and economic performance: evidence from Zhejiang, China.Frontiers in public health · 2026Article
- Intersections of ABO blood group, secretor status, and the gut microbiome: implications for disease susceptibility and therapeutics.Archives of microbiology · 2025Review
- Seroepidemiology of Severe Acute Respiratory Syndrome Coronavirus 2 Infection in Blood Donors from Western Romania, August-September 2023.Microorganisms · 2025Article
- Article
235 more citing papers are in PubMed but not listed here.
Corrections and comments
- Commented on by
- Commented on by
- Commented on by
- Commented on by
Authors and funding
19 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To explore any relationship between the ABO blood group and the coronavirus disease 2019 (COVID-19) susceptibility, we compared ABO blood group distributions in 2173 COVID-19 patients with local control populations, and found that blood group A was associated with an increased risk of infection, whereas group O was associated with a decreased risk.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.