[Diagnosis of Pneumocystis carinii pneumonia by indirect immunofluorescence. Technic, value of limitations of the method].

The diagnosis of Pneumocystis Pneumonia can be established by indirect immunofluorescence test performed on the sera of the patients. This investigation has proved to be valid since it gives 50 p.cent of positive results in 16 confirmed cases. The false negative results can be imputed in some patients, to the extreme severity of the immune deficiency.