Intestinal Spirochetes and Desease in Dogs

Suspensions prepared from fecal samples of beagles were examined by phase microscopy. High numbers of borrelia were consistently found in dogs with diarrhea but seldom in healthy dogs. Other types of spirochetes were randomly distributed in both healthy and diarrhetic dogs. Repeated samplings were necessary to establish the relationship of spirochetes to disease since single specimens were occasionally found to vary from the average in both groups.