Polymerase Chain Reaction of Plasma and Bronchoalveolar Lavage Fluid for Diagnosing Invasive Aspergillosis.

An editorial focuses on two studies regarding the diagnosis of invasive aspergillosis (IA) using polymerase chain reaction (PCR) on plasma and bronchoalveolar lavage (BAL) fluid. It discusses the findings of these studies, emphasizing the improved accuracy of PCR in plasma compared to traditional tests like galactomannan. It also explores the challenges and questions raised by the studies, particularly in the context of the current definitions and classification criteria for IA.