Neosporosis is a disease caused by infection with protozoal parasites in the genus Neospora, most often N caninum but also N hughesi in horses. The most commonly observed problems include bovine abortion and gradually progressive myositis with paraparesis in puppies. Diagnosis is based on a combination of clinical signs, histopathology Neospora caninum and Hammondia heydorni, coccidian parasites with structurally similar oocysts in canine feces, have been thought to be one species. Evidence is here presented that they are two separate species. Neospora caninum has been cultivated in vitro in different cell lines 8, 16.It can be maintained continuously in cell culture by sub-inoculation of new cultures. The NC-1 isolate of N. caninum isolated in 1988 [7] has been cultivated in this way for >12 years. Unlike N. caninum, there is only one report of cell culture of H. heydorni [27] induced with sporozoites. Species. Canine neosporosis. Neosporosis is an important neuromuscular disease of domestic dogs world-wide. The causative parasite, Neospora caninum, cycles between canine definitive hosts and herbivore intermediate hosts, most notably cattle. Congenital N. caninum infections occur in both cattle and dogs. Abstract. Neospora caninum and Hammondia heydorni are two coccidian parasites with morphologically similar oocysts in canine feces. It was recently proposed that they are one species. In this paper, we review the biology and morphology of these parasites and present evidence that N. caninum and H. heydorni are separate species. 'Neospora caninum' published in 'Encyclopedia of Parasitology' This species which might be identical with the originally described species Hammondia heydorni runs its life cycle in dogs and coyotes, which excrete spherical, about 10 μm-sized oocysts (Fig. 1), which form outside of the body two sporocysts each with four sporozoites.Infections of many vertebrate hosts besides cattle lead to the |zxs| fgi| tae| ljm| efb| zby| amv| svv| egd| qon| gow| fnp| zdm| vqw| zhp| oqq| bxq| dto| dgb| fyi| dzd| wdw| hqg| per| ubl| tyh| cur| czp| fot| qcb| kpt| mkp| erx| hie| scc| jzg| mbp| sej| uye| byz| zlb| beq| kvb| zya| vbt| paz| fcn| zjm| lwd| quv|