We conducted an exploratory study of plasma microbial cell-free DNA sequencing for the diagnosis of Lyme disease among pediatric patients. Low levels of Borrelia burgdorferi microbial cell-free DNA (<3-5 molecules per microliter) were observed in 6/9 serologically confirmed participants, including 4/5 with arthritis and 2/3 with multiple erythema migrans.
View Article and Find Full Text PDFBackground: Plasma microbial cell-free DNA (mcfDNA) sequencing can establish the etiology of multiple infectious syndromes by identifying microbial DNA in plasma. However, data are needed to define the clinical scenarios where this tool offers the highest clinical benefit.
Methods: We conducted a prospective multicenter observational study that evaluated the impact of plasma mcfDNA sequencing compared with usual care testing among adults with hematologic malignancies.
Background: Pneumonia is a common cause of morbidity and mortality, yet a causative pathogen is identified in a minority of cases. Plasma microbial cell-free DNA sequencing may improve diagnostic yield in immunocompromised patients with pneumonia.
Methods: In this prospective, multicenter, observational study of immunocompromised adults undergoing bronchoscopy to establish a pneumonia etiology, plasma microbial cell-free DNA sequencing was compared to standardized usual care testing.
Background: The diagnosis of infective endocarditis (IE) can be difficult, particularly if blood cultures fail to yield a pathogen. This study evaluates the potential utility of microbial cell-free DNA (mcfDNA) as a tool to identify the microbial etiology of IE.
Methods: Blood samples from patients with suspected IE were serially collected.