Life cycle studies onSarcocystis dirumpens sp.n. with regard to host specificity
Four differentBitis species (B. arietans, B. caudalis, B. gabonica, B. nasicornis) were shown to function as definitive hosts forSarcocystis dirumpens, isolated from a naturally infectedB. nasicornis. The experimentally infected snakes excreted sporocysts measuring 11.1 (10.6–11.6)×8.1 (7.9–8.3) μm. By repeated retransmission studies several rodents from the generaMesocricetus, Phodopus, Gerbillus, Meriones, Mastomys andMus were proved to be experimental intermediate hosts. After inoculation of these rodents with sporocysts excreted by the experimentally infectedBitis species sarcocysts with a length of up to 2.5 cm and a width of circa 100–400 μm developed in the rodents, depending on the duration of the infection. Under light microscopic observation the cyst wall appeared smooth. The bradyzoites measured about 8–9×2 μm.
KeywordsLife Cycle Microscopic Observation Intermediate Host Host Specificity Cyst Wall
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