Updated 8/20/2026
Due to the ongoing outbreak of cyclosporiasis in multiple states across the United States, including Michigan, this is an informational bulletin to provide guidance on appropriate test ordering for Cyclospora cayetanensis, the causative agent of cyclosporiasis in humans.
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Josh Shirley
Dearborn, Farmington Hills, Grosse Pointe, Royal Oak, Southeast Michigan, Taylor, Trenton, Troy, Wayne
Body Fluid Culture – Specimen Collection Update
Effective June 1, 2026, Corewell Health Microbiology Laboratory in Southeast Michigan is updating specimen collection criteria for body fluid specimens. Microbiology will no longer accept red top vacutainer tubes as a collection device for body fluids (i.e. synovial fluid, pleural fluid, peritoneal fluid, etc). Collection criteria information has been updated in Corewell’s Lab Test Directory to reflect this change. Test order for body fluid cultures is LAB2111016 (aerobic culture) and commonly accompanied by LAB233 (anaerobic culture).