ARTERITIS VIRAL – Free download as Powerpoint Presentation . ppt), PDF File .pdf), Text File .txt) or view presentation slides online. Equine viral arteritis (EVA) is a contagious viral disease of equids caused by equine arteritis virus. (EAV), an RNA virus classified in the genus, Arterivirus, family. English Translation, Synonyms, Definitions and Usage Examples of Spanish Word ‘arteritis viral equina’.
|Published (Last):||20 February 2017|
|PDF File Size:||15.30 Mb|
|ePub File Size:||14.11 Mb|
|Price:||Free* [*Free Regsitration Required]|
J Equine Vet Sci a; Other recent and larger studies identified two major groups of sequences confirming that South American strains have multiple origins, one of them being European strains Metz et al.
Lactate dehydrogenase-elevating virus, equine arteritis virus, and simian vifal fever virus: J Equine Vet Sci a; EVA has cause significant economic loses; in the last years a strong multi-state outbreak reaches 18 states.
In the persistently infected stallion, EAV is located in the accessory sexual glands and establishment and persistence of the carrier state is testosteronedependent Little et al. During primary viremia, EAV infects and replicates in endothelial cells causing eauina multi-vessel damage to the endothelium, the subsequent internal elastic lamina and affecting the middle muscular layer of the vessels.
During primary viremia, EAV infects and replicates in endothelial cells causing strong multi-vessel damage to the endothelium, the subsequent internal elastic lamina and affecting the middle muscular layer of the vessels.
Equine viral arteritis – Wikipedia
Clinical and virological findings on experimental equine viral arteritis in horses. Although through the years it has been recognized eqina EAV causes contagious abortion in pregnant mares Doll et vural. In addition, vaccination has been successfully used as a tool to control the spread of the disease during an outbreak, controlling the spread of infection and the severity of the symptoms Timoney, The most important outbreak of EVA in America occurred inwhen the disease struck many racing thoroughbred farms in Kentucky.
The natural reservoir of EAV infection is the carrier stallion, which ensures the permanence of the infection in equine populations.
Equine viral arteritis
When a mare, a gelding or a sexually immature colt catches the disease, the animal excretes the virus through respiratory airways and develops a strong immunity to re-infection Fukunaga et al. For females a negative result or stability of neutralizing titers in two serological, evaluated 28 days prior to shipment is required.
Am Assoc Equine Pract Report a;7. The case of Argentine has been largely discussed and documented in the scientific and technical rateritis, as it is the South American country with the largest number of reported cases. As a result of positive serological diagnoses, interventions were conducted in six establishments.
The increasing significance of international trade in equids and its influence on the spread of infectious diseases. Nowadays, Colombia has active import links of horses with countries in which EAV is present or has been reported, and has imported many horses from those countries. All vaccinated horses should receive yearly boosters to protect them against infection and in the case of stallions, to prevent the development of the carrier state. J Vet Med Sci ; Stallions may become carriers. In contrast, adult males are very likely to become carriers of the virus for long periods of time and can transmit the virus to mares during mating Neu et al.
Equine Viral Arteritis: epidemiological and intervention perspectives
How to cite this article. Two days after aerosol infection, EAV spreads rapidly to the bronchial and pulmonary lymph nodes, reaching the bloodstream and spreading throughout the body. Equine viral arteritis Chapter 2. Experimentally, it has become clear that abortion is primarily the equia of fetal infection, other than myometritis or damage to the placenta, leading to expulsion of the fetus; in addition, there is evidence that the tissues of the aborted fetus tissues have higher viral titers compared to the mother, stressing the high level of virus replication in the fetus MacLachlan et al.
More than a century ago, reports were published in the European veterinary literature concerning a horse disease whose clinical features were consistent with those described for EVA.
Adv Virus Res ; Additionally it was concluded that EAV has a restricted geographic distribution inArgentina, being present in just a few provinces, equine categoriesand production systems due mainly to high risk factors such as horse importations De laSota et al.
Proceedings of the 5th Eqkina Equine Infec Dis; Ann NYA cad Sci b; The import of horses is a very important element of Colombia’s livestock trade. However, none of the symptoms reported the presence of reproductive or respiratory clinical signs consistent with those caused by EAV infection.