Relationship Between the ABO Blood Group and the Coronavirus Disease 2019 (COVID-19) Susceptibility

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 0 was associated with a decreased risk.

Automated summary

There is a relationship between ABO blood group and susceptibility to COVID-19, with people with blood group A having an increased risk of infection and those with blood group O having a decreased risk.