Figure 1From: Differential cytokine gene expression profiles in the three pathological forms of sheep paratuberculosisHistopathology of the terminal ileum from asymptomatic sheep. (a) Ziehl-Neelsen stain for acid-fast bacteria (× 250) showing the absence of mycobacteria. (b) H&E stained low power (×250) and (c) high power (×400) show normal histology.Back to article page