AbstractA simple rapid method is described for the staining of Campylobacter-like organisms (CLOs) in paraffin embedded tissue sections. This method the Diff-Quik®is compared to two methods currently in use, the Warthin-Faulkner modification of the Warthin-Starry silver impregnation method and the May-Grunwald/Giemsa stain. Although staining of CLOs in gastric biopsies is acceptable in all three methods, the Diff-Quik stain reduces the time required to ten minutes. It also offers ease of performance and economy of reagents. (The J Histotechnol13:113, 1990).