ABO phenotype and SARS-CoV-2 infection: Is there any correlation?

Area of Science:

• Medical Science
• Infectious Diseases
• Epidemiology

Background:

• The global COVID-19 pandemic, caused by SARS-CoV-2, significantly impacts respiratory health.
• Infectious disease susceptibility is often linked to host factors, including blood group phenotypes.
• Understanding these associations can aid in predicting disease outcomes and developing targeted prevention strategies.

Purpose of the Study:

• To review and synthesize existing studies on the correlation between blood groups and COVID-19.
• To explore the relationship between various blood group phenotypes and SARS-CoV-2 infection rates and mortality.
• To identify other potential factors influencing COVID-19 outcomes in relation to blood type.

Main Methods:

• Systematic literature search for studies investigating blood groups and COVID-19.
• Analysis of reported associations between ABO and Rh blood groups and SARS-CoV-2 infection.
• Review of data on COVID-19 severity, hospitalization, and mortality stratified by blood group.

Main Results:

• Multiple studies suggest potential associations between certain blood groups (e.g., non-O types) and increased risk of SARS-CoV-2 infection.
• Evidence indicates possible links between blood groups and COVID-19 severity or mortality, though findings are not always consistent.
• Other demographic and clinical factors also play a role in COVID-19 outcomes.

Conclusions:

• Blood group phenotypes may represent a contributing factor in COVID-19 susceptibility and disease progression.
• Further research is needed to elucidate the precise biological mechanisms underlying these associations.
• Integrating blood group information could potentially refine risk stratification models for COVID-19.