Several factors may lead to a false-positive assay result in the absence of invasive fungal infection, including serious bacterial infection, the use of dialysis membranes and filters made from cellulose, cotton gauze employed during surgery, specific fractionated blood products such as serum albumin and immunoglobulins, and the use of some antibiotics as amoxicillin-clavulanate and piperacillin-tazobactam (23). The gene discussed is ALB; the disease is bacterial infectious disease.