[The diagnosis of cryptococcosis. A comparison of 2 latex systems for antigen detection].

A latex reactive was designed for detecting Cryptococcus neoformans antigen. It was evaluated by a comparative study with a commercial system (Meridian Diagnostic, Inc.). Total coincidence was observed with both latex systems after studying 3 sample groups: patients with cryptococcosis diagnosis, blood bank donors and patients with clinical signs of the disease. Sensitivity, specificity and stability of the latex reactives prepared were assessed. This diagnostic technique opens new perspectives for quick diagnosis in Cuba, especially for immunosuppressed patients. It will allow for timely treatment and at the same time will contribute to saving expenses in imports.