Protection in a hamster model of congenital toxoplasmosis
2012
Freyre, A. | Araujo, F.A.P. | Fialho, C.G. | Bigatti, L.E. | Falcón, J.D.
Almost uniform protection against congenital toxoplasmosis initiated by inoculations with cysts and oocysts of the parasite was seen in the hamster model, among strains of different genotypes. Because the RH immunization prior to pregnancy has to be controlled with medication for most of the hamsters to survive, and also some congenital transmission of Toxoplasma was observed during the chronic stage of the infection, the hamster is considered less practical than the rat and the BALB/c mouse models. It is concluded that the hamster model closely resembles protection against congenital infection in nature, where most of the pregnant women and ewes that experienced a toxoplasma infection previously, protect their fetuses against an infection with the parasite during pregnancy.
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