Snow Leopard
Senior Member (Voting Rights)
Another article suggesting that blood group type may influence people's reaction to Covid-19:
https://www.msn.com/en-gb/health/mi...id-19-risk/ar-BB1ecX69?ocid=ASUDHP&li=BBoPWjQ
https://ashpublications.org/bloodad...475250/The-SARS-CoV-2-receptor-binding-domain
Well, not exactly. The authors state:
Interestingly, the SARS-CoV-2 RBD exhibited only low-level binding to human RBCs of all types and failed to display any detectable preference for blood type A RBCs (Figure 1C; supplemental Figure 1). In contrast, the SARS-CoV-2 RBD readily bound ACE2-expressing HEK293 T cells, and anti-A antibody likewise bound blood group A RBCs (Figure 1D-E). Thus, significant binding of the SARS-CoV-2 RBD to the blood group A structures found on human blood group A RBCs does not seem to contribute to the increased likelihood of SARS-CoV-2 infection in blood group A individuals.
They used a glycan array assay - they didn't actually observe differences in binding to real lung cells.
Also note that spike protein binding to glycans (and sialic acid residues) is already well known.
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