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Inhibition of microfilarial production in the jirds implanted subcutaneously by dipetalonema viteae adult



Inhibition of microfilarial production in the jirds implanted subcutaneously by dipetalonema viteae adult



Pakistan Journal of Zoology 21(3): 201-212



Meriones unguiculatus and Mesocricetus auratus were infected by Dipetalonema viteae using the tick, Ornithodoros tartakovskyi, as a vector. The hamsters showed more resistance to the infection when compared to the jirds. Microfilaraemia in the jirds infected with 25 L3 was much higher than that in the jirds implanted with adults. The microfilarial levels caused by the worms from the two donor groups were found to be significantly different. The results suggested that the adult worm initiated host responses which caused the inhibition of the releasing mechanism of the microfilariae and/or lowered the reproductive capacity of the adult female worms. It was further observed that the amount of the inhibiting factor in the host and the length of time the female adults remained exposed to this factor also played an important role in determining the degree of suppression in the reproductive capacity of the female worm. The finding that fecundity of the adult worm plays a major role in the filarial infections may help in pinpointing the therapeutic measures to eliminate this destructive disease.

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Accession: 007464957

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