Abstract
Publisher Summary This chapter describes methods in Campylobacter . Campylobacter fetus ( C. fetus ) subspecies fetus causes a venereal disease in cattle characterized by transient infertility, endometritis, and abortion of infected cows. The organisms are carried on the prepuce of the bull, which does not show any symptom of disease. They are introduced into the cervicovaginal area at estrus when cows are served by infected bulls. Campylobacter fetus subspecies intestinalis causes infectious abortion during late pregnancy and perinatal lamb abortion, as well as sporadic abortion, in cattle; it is transmitted orally. Campylobacter fetus subspecies jejuni can be isolated from the stomach contents and placentas of fetuses of aborted sheep. It is also detected in the feces of normal sheep, cattle, swine, goats, and various birds. Three possible modes of acquiring the infection are discussed in the chapter: (1) direct contact with infected animals, (2) contamination of food—for example, milk, vegetables, meat, especially liver, and (3) endogenous infection; there are some reports describing Campylobacter as a transient part of the normal flora of the gastrointestinal tract in man.
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