Often abortion results from the stress of the clinical disease. Toxoplasma gondii Protozoal parasite causing mild disease in adult dogs. May be more severe when present with distemper virus, which is known to suppress the immune system. Fetal infection may occur and Toxoplasma gondii has been found in milk of lactating bitches. Neospora caninum Recently identified protozoal parasite that resembles Toxoplasma gondii , can infect brain and spinal cord of developing fetuses or neonates.
Newborns have progressive muscular weakness leading to death.
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