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’.
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They are of great importance, one of them causing Porcine Reproductive and Respiratory Syndrome Plagemannand Moennig, Fenner’s Veterinary Virology 5th ed. Multi-state occurrence of EVA.
Equine viral arteritis – Wikipedia
However, the virus can rapidly be inactivated by low humidity, sunlight, and the use of lipid solvents, or by using common inactivating detergents Burky,Shirai et al. Prevalence of antibodies to influenza virus, viral arteritis and herpesvirus in horses of the Rio Grande do Sul state, Brazil.
Virulent and avirulent strains of equine arteritis virus induce different quantities ofTNF-alpha and other proinflammatory cytokines in alveolarand blood-derived equine macrophages.
Prevention and control Although in Colombia, EVA is an exotic disease, some prevention and control measures have been widely reported, that can make infection a manageable disease, and most importantly, can reduce the direct economic losses produced by disease outbreaks.
However, from a practical standpoint, it is difficult to distinguish between EAV strains that can cause abortion and those which do not; additionally, there are no standard techniques to classify the strains based on their abortive properties. Virus isolation should be attempted using semen of two separate ejaculations, or mating two EAV-negative mares with the same stallion.
Genetic stability of equine arteritis virus during horizontal and vertical transmission in an outbreak of equine viral arteritis.
InJunetwo farms epidemiologically related with the initial outbreak vieal EVA were evaluated by virus neutralization. The outbreak affected six premises and around horses were infected.
Equine viral arteritis
In light grey, countries with positive serology. Although in Colombia, EVA is an exotic disease, some prevention and control measures have been widely reported, that can make infection a manageable disease, and most importantly, can reduce the direct economic losses produced by disease outbreaks. 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, Equine viral arteritis uniform methods and rules effective April 19, Inusing neutralization assays, out of 1, equine serum equiba taken from 5 different states of Venezuela, 2.
It is necessary to mention that due to Fquina is an exotic disease, vaccinations are not recommended in our country yet. Of these, 10 were thoroughbreds imported from the U. Res Vet Sci ; Given these figures, an infection could clearly be devastating to our susceptible populations and the risk is too high to be ignored. Am Assoc Equine Pract Report a;7. Out of the samples included in this study, Since there is no specific treatment for EVA, once the infection is confirmed clinical management should include rest, fluids and in some cases, broadspectrum antibiotics to reduce the risk of secondary bacterial infections.
Genetic stability of equine arteritis virus during horizontal and vertical transmission in an outbreak of equine viral arteritis. According to a equine census, published by ICA, Colombia currently has a population virall 1. This article focuses on creating awareness of the key points of infection and on examples of how infection has been distributed in countries that have developed horse breeding, such as Argentina, a country aware of the origin and distribution of the infection.
Output of equine arteritis virus from persistently infected stallions is testosterone dependent, p. An active infection is diagnosed when high levels of antibodies in a single sample are found or when an increase in antibody titers occurs in two paired blood samples, obtained days apart Holyoak et al.
The prevalence of EAV varies significantly among horse breeds. Arch Virol ; However, from a practical standpoint, it is difficult to distinguish between EAV strains that can cause abortion and those which do not; additionally, there are no standard techniques to classify the strains based on their abortive properties. The author thanks Dr. However, the virus was not isolated untilduring an outbreak of abortions and respiratory illness in a “Standardbred” horse breeding ranch near Bucyrus, Ohio Doll, The most important outbreak of EVA in America occurred inwhen the disease struck many vigal thoroughbred farms in Kentucky.
EVA multi-state outbreak in U. Am Assoc Equine Pract Report a;7. In Octoberof three stallions imported to Argentina, one was seropositive, so that the farm was restricted and required sanitation.
Horse diseases Animal virology. Virus clearance coincides with the development of specific neutralizing antibodies against EAV Timoney and McCollum, b. Arch Virol ; Although the mare easily eliminates the virap, a pregnant EAV-infected mare cantransmit the virus tothe fetus.
The most important outbreak of EVA in America occurred inwhen the disease struck many racing thoroughbred farms in Kentucky.
J Gen Virol ; Although several types of immunoassays ELISAs have been developed, given the high specificity of the virus neutralization test to detect individuals with low serum antibody titers, this test has been established by the World Animal Health Organization-OIE as the gold standard for international transport of horses Timoney, A lesser percentage of long-term carrier stallions can clear the virus spontaneously from the reproductive tracts and do not show risk arteeitis transmission of infection Timoney and McCollum,