The Rh Negative Blog

ABO and Rh blood groups and risk of infection: systematic review and meta-analysis

Here is yet another study providing familiar results:

Non-O and Rh-positive blood status are each associated with a higher risk of SARS-CoV-2 infection, in addition to other viral and non-viral infections.

https://bmcinfectdis.biomedcentral.com/articles/10.1186/s12879-023-08792-x