We performed a retrospective review of 23,777 specimens tested by our Lyme real-time polymerase chain reaction assay to determine the percent positive rates by specimen source. The percent positive rates were:
• Highest in synovial fluid [lubricant within joints] (6.4%) and tissue (6.5%),
• And lowest in blood (0.1%) and cerebrospinal fluid (0.09%).
Source: Diagnostic Microbiology and Infectious Disease, Oct 21 2008, E-pub ahead of print. PMID: 18947959 by Babady NE, Sloan LM, Vetter EA, Patel R, Binnicker MJ. Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA. [E-mail: email@example.com]