Cryptococcus neoformans-Specific and Non-Cryptococcus neoformans-Specific Antibody Profiles in Organ Transplant Recipients With and Without Cryptococcosis.

Antibody immunity has not been studied in organ transplant recipients (OTRs) with cryptococcosis. We determined serum antibody levels in OTRs: 23 cryptococcosis cases and 21 controls. Glucuronoxylomannan immunoglobulin M (IgM) and laminarin IgM were lower in cases than controls, were inversely associated with cryptococcosis status, and may hold promise as markers of cryptococcosis.