Figure 3

Comparison of detection of Brachyspira by culture, PCR and Gram stain. Contingency tables showing numbers of samples determined to be positive or negative for Brachyspira by culture, nox PCR on rectal swabs, and Gram stain of fecal smears. Results are shown for samples for which data was available for (A) Culture and Gram stain, (B) Culture and PCR, (C) Gram stain and PCR.