Important Testing Update
Due to increased testing volumes associated with the current Cyclospora outbreak, please allow an additional 5–7 days for test turnaround time. Increased national demand has also resulted in a temporary backorder of Supply #F01 (Total-Fix® Stool Transport Vial). DLO is actively working to minimize any impact to patient testing and appreciates your patience during this time.
Cyclospora Outbreak Testing Guidance
At Diagnostic Laboratory of Oklahoma (DLO), we understand that taking the right actions for your patients is your highest priority. Due to the current increase in Cyclosporiasis cases reported by the CDC, DLO is providing the following testing guidance and recommendations for healthcare providers.
Pathogen
Cyclospora (Cyclospora cayetanensis) is a coccidian parasite that causes an intestinal diarrheal illness. People become infected after consuming contaminated food or water containing the parasite.
Recommended Test
Cyclospora and Isospora Examination (Test Code 10018)
Please note that stool specimens submitted under Test Code 681 – Ova and Parasite Examination will provide a presumptive result if Cyclospora is detected.
If confirmatory testing is desired, providers must submit an add-on order for Test Code 10018 within 3 days of the initial report to obtain a definitive diagnosis from the existing specimen.
Patient Preparation
- Preserved stool specimens must not contain residual barium from diagnostic testing.
Preferred Specimen Requirements
- 10 grams or 10 mL fresh stool
- Preserved in one Total-Fix® transport vial (Supply #F01)
Methodology
Microscopic examination using a modified acid-fast stain.
Virtual Test Guide
For additional specimen collection instructions, methodology, and ordering information, visit the DLO Virtual Test Guide.
Questions?
Contact DLO Client Services
1-800-891-2917
Option 2
Or contact your local DLO Executive Account Representative.
Reference
CDC. Surveillance of Cyclosporiasis. 2026. https://www.cdc.gov/cyclosporiasis/php/surveillance/index.html
