Blanco Martínez, Rafael DavidGómez León, VictorCardona Álvarez, José2015-09-032015-09-032015-09-032256-3342http://hdl.handle.net/10567/1370Neosporosis is a parasitary disease that affects dogs, cattle, sheep, goats, buffaloe, deer and horses, caused by Neospora caninum, an intracellular protozoan. This parasite can infect wild and domestic canids, the ruminants and the horses. Dogs (Canis lupus familiaris) and coyotes (Canis latrans) are definitive hosts of the protozoan, and this fact suggests that the agent can infect the cattle´s food with oocysts eliminated by these animals in their feces. The vertical transmission is known as responsible for the perpetuation of the infection within the herd, and this is why chronically infected cows transmit the parasite to the fetus during the gestation as a consequence of the recrudescence of the latent infection, which appears due to the immunosupression caused by the gestation. Abortion is the only clinical sign oberved in adult cows, but living calves with the infection, congenitally transmitted, can be found. They have low weight when they are born and they also show neurological signs, such as ataxia. The most important effect of neospirosis in cattle is the occurrence of abortions, with the economic loses they bring to producers. This is why the identification of the risk factors involved in the infection of cattle with Neospora caninum has important consequences in the development of strategies to control or prevent the disease, especially when there are no treatments or vaccines available.esCorporación Universitaria LasallistaFacultad de Ciencias Administrativas y AgropecuariasNeosporosis bovinaGanado - ReproducciónAborto en los animalesGanado - EnfermedadesCaballos - EnfermedadesPerros - EnfermedadesArticle