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Comparative Development of Taenia solium in Experimental Models
Pablo Maravilla, Guillermina Avila, Vinicio Cabrera, Laura Aguilar and Ana Flisser
The Journal of Parasitology
Vol. 84, No. 5 (Oct., 1998), pp. 882-886
Stable URL: http://www.jstor.org/stable/3284613
Page Count: 5
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Various mammals were evaluated as experimental models of adult Taenia solium. Suppressed and nonsuppressed hosts were used as experimental models. Infections were performed per os with cysticerci obtained from pigs; immunosuppression was induced with methyl prednisolone acetate at intervals of 10-14 days after infection. Tapeworms developed in hamsters, gerbils, and chinchillas but failed to develop in rabbits, cats, pigs, and rhesus monkeys. In infectable animals, treatment with the steroid facilitated maintenance and development of the parasite, and more tapeworms were obtained. Mature and some pregravid proglottids were recovered from hamsters and gerbils, whereas a gravid T. solium was obtained from a chinchilla at 12 wk postinfection. Eggs recovered from the chinchilla transformed into cysticerci in a pig 12 wk after oral infection. The T. solium-chinchilla experimental system seems to be an alternative definitive host for this parasite and thus the basis for a great diversity of studies.
The Journal of Parasitology © 1998 The American Society of Parasitologists