B. hampsonii can be detected through PCR, a specific culture, and nox-based sequencing at the University of Saskatchewan. 377 samples from Western Canada were tested for the presence of B. hampsonii, or other Brachyspira. Two thirds of the farms were inter-related, and most of the samples were fecal. Brachyspira was found in 59% of samples, B. hampsonii was the most common strain and found in 34% of samples. B. hyodysenteriae was in 11% of samples, B. pilosicoli in 13%, B. murdochii in 9%, and B. intermedia in 4%.