January 14, 2025 - Due to nationwide reagent backorder, Johne’s culture assays are temporarily unavailable. Affected assays include:

• Mycobacterium Paratuberculosis Cul. Maximum (95057)
• Mycobacterium Paratuberculosis Cul. Pooled Fecal (95058)
• Mycobacterium Paratuberculosis Cul. Routine (95060)

We hope to have these assays available again soon but do not have a shipment date from the supplier. Clients requesting one of these tests during this time will be contacted.

We are approved by the USDA to perform the Johne’s Direct PCR on both individual (95072) and pooled (95073) samples. Direct PCR uses molecular technology to identify bacterial DNA in the sample, providing accurate and rapid detection of MAP fecal shedding. The direct PCR sensitivity and specificity are comparable to culture. Turnaround time for this assay is much shorter than culture with results available in 2-7 days.

If culture is requested, samples will be stored appropriately until reagent arrives and testing resumes. We apologize for this unavoidable disruption to our service.

Please contact the Bacteriology Laboratory with any questions.