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An intestinal infection of humans caused by the protozoan Balantidium coli.



(balantidiosis in animals), a disease of swine and man caused by the holotrichous infusoria Balantidium. The disease is associated with impairment of intestinal activity. Balantidiasis occurs throughout the world. Among animals, weaned piglets and gilts are most prone to the disease. The source is sick swine, in whose feces nonmotile forms (cysts) of balantidia reach the soil and floors of pigsties. When swallowed, the cysts reach the intestine and turn into motile forms, or infusoria, which penetrate the intestinal wall and ulcerate it. Affected animals suffer from high temperature and diarrhea admixed with mucus and blood. The death rate in swine may be as much as 50 percent of the number contracting the disease. The presence of cysts in feces is necessary for a conclusive diagnosis. The treatment includes the use of disinfectants and bactericidal agents. Prevention is accomplished through strict observance of veterinary and sanitary regulations on farms, the keeping of swine in summer camps during the warm weather, and periodic feeding of antibiotics and other agents used to combat infestations.

In man, balantidiasis, or infusorian dysentery, arises as a result of the penetration of balantidia into the wall of the large intestine. The organisms come mainly from swine, but a human being who excretes the infusoria can also infect those around him. The cysts are transported by flies and may enter the digestive tract of man with contaminated food, water, or vegetables and from the hands. After entering the intestine, the parasites necrotize the tissues and produce ulcers. Balantidiasis often occurs with a normal temperature, and at times intestinal function is only slightly impaired. Stools are liquid, frequent, and admixed with mucus and pus, sometimes with blood; ineffectual urges to evacuate (tenesmus) are common, as is pain along the large intestine. If untreated, the disease invariably progresses. The diagnosis is based on physical examination and laboratory confirmation of the presence of balantidia. There are cases of an asymptomatic parasite carrier state. The treatment includes antibiotics and general supporting therapy. Prevention involves prompt detection and mandatory treatment of carriers of balantidia and patients.


Svanidze, D. P. Amebiaz i balantidiaz. Moscow, 1959. (Bibliography.)
Shevtsov, A. A. Velerinarnaia parazitologiia. Moscow, 1965.
Ivanova, P. S. “Balantidiaz.” In Velerinarnaia entsiklopediia, vol. 1. Moscow, 1968.
Schensnovich, V. B., and V. G. Khamtsov. “Balantidiaz.” In Mnogotomnoe rukovodstvo po mikrobiologii, klinike i epidemiologii infektsionnykh boleznei, vol. 9. Moscow, 1968.


References in periodicals archive ?
The prevalence of Balantidium coli infection in fifty-six mammalian species.
Japon) semanalmente por cuatro semanas [17]; Ascaris suum, Trichuris suis, Balantidium coli, Strongyloides spp.
Similarly in another parasitic species of ciliate protozoan, Balantidium coli infection cattle in Pakistan were treated with secnidazole at a dosage of 10 mg/kg perorally with a final efficacy of 87.
We here describe a case of Balantidium coli infection (Balantidiasis) in a 5 years old male hamadryas baboon (Papio hamadryas) in a pet shop in Saudi Arabia.
dispar y Balantidium coli frente a diversos antimicrobianos, constituye una alternativa (en caso de validarse) de utilidad potencial para su aplicacion en el tratamiento contra los protozoarios, asi como en la vigilancia de la resistencia.
A case of lung involvement with Balantidium coli complicated by severe pulmonary haemorrhage resulting in iron deficiency anaemia has not, to our knowledge, been described previously.
Detection of Balantidium coli from evacuated feces in cynomolgus monkeys (Macaca fascicularis).
Balantidium coli tambien fue identificado, pero en un bajo porcentaje (0,52%), lo que indica que los habitantes de esta comunidad tienen contacto con cerdos infectados, al ser este el principal reservorio de esta zoonosis.
Coccidias y microsporidios intestinales, Balantidium coli y Trichomonas vaginalis.
Se reporta el caso de una paciente indigena de la etnia Yucpa de la Sierra de Perija-Venezuela, con cuadro de diarrea por Balantidium coli.
and Balantidium coli, as well as the mites Dermacentor halli, Dermacentor latus, Amblyomma cajannense, Amblyomma coelebs, Amblyomma ovale, Anocentor nitens and Ixodes bicornis.
We discuss means to differentiate this entity from the pathogenic-ciliated protozoa Balantidium coli.