Fig. 1From: Failure to detect M. avium subspecies paratuberculosis in Johne’s disease using a proprietary fluorescent in situ hybridization assayA composite of four images of the same section, of Bovine Johne’s disease tissue. a DAPI; b Texas Red (IS900); c Cy-5 (Bovine β-actin) d composite of a–c. With probes: Note “positive: signal in b–d. Marker bars, in µm, indicate magnification of x 40Back to article page