ALB and Ito hypomelanosis: False-positive BG reactions were associated with fungal infection (non-aspergillosis), the use of albumin, hemodialysis, and certain bacterial infections.25 False-positive reactions with GM might be caused by the use of piperacillin-tazobactam, amoxicillin-clavulanic acid, or antifungal drugs.9 A strategy to overcome the inherent deficiencies of these serological tests could be the use of a combination of the surrogate markers of IPA.