The role of IgG glycosylation in the immune response has been studied, but less is known about IgM glycosylation. Here the authors characterize glycosylation of SARS-CoV-2 spike specific IgM and show that it correlates with COVID-19 severity and affects complement deposition.
- Benjamin S. Haslund-Gourley
- Kyra Woloszczuk
- Mary Ann Comunale
