Bovine besnoitiosis, due to the cyst-forming apicomplexan Besnoitia besnoiti, is widespread in Africa, in Asia and in the south of Europe. This infection leads to major economic losses in cattle production with a decrease in milk production, transient of definitive sterility of bulls and mortality. Since its emergence in Europe (Germany, Spain and Centre of France), more attention has been given to this infection during the last 10 years, including the recent development of serological methods for diagnosis. The life cycle of B. besnoiti remains a mystery: the definitive host is unknown and the transmission routes are poorly understood. B. besnoiti is thought to be transmitted mainly by hematophagous insects. This paper presents a review of what is currently known of the epidemiology of bovine besnoitiosis and the key manifestations of the disease. It highlights the urgent need for research programs to improve efficient and sustainable control methods.
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