Medi visna ovaca i artritis i encefalitis koza (MBO/AEK) - stavovi stručne grupe

Abstract

Arthritis-encephalitis goat is an incurable viral goat disease. The disease is clinically manifested in several forms, such as inflammation of the joints (arthritis), brain (encephalitis), weight loss, pneumonia and inflammation of the mammary gland (mastitis). The disease is specific to goats and cannot infect other domestic animals and humans from it. Infected goats are more susceptible to other diseases, such as, for example, the subclinical inflammation of the mammary gland. The economic damage caused by the onset of the disease is caused by the death of the calf, the decrease in milk yield, premature excretion from breeding and the costs of harmless removal of diseased animals. The maedi-visna virus (MVV) is classified as a lentivirus family of retroviridae. The organs targeted by MVV are: lungs, mammary glands, joints and brain. In these organs, the virus replicates in mature macrophages and induces slowly progressing inflammatory lesions containing B and T lymphocytes. Clinical signs of MVV infection are dyspnoea, weight loss, mastitis and arthritis, refer to the location of these lesions. This disease is closely related to encephalitis and skin arthritis. The Rulebook on Annual Program of Animal health protection measures for 2018 ("Official Gazette of the Republic of Serbia" No. 11/2018) defines the following: The case of disease of maedi visna disease or arthritis and encephalitis, is the state of the disease in which clinical symptoms and in which diagnostic tests determine the presence of infection. Based on the results of active and passive epizootiological surveillance and diagnostic testing, the health status of sheep and goat farms on sheep and goat farms will be established, as well as registration and registration in the Central database of households on which the health status of these infection, according to the program of the Ministry. Depending on the health status of these infections, the categorization of farms is carried out in the following way: 1) holdings with unknown XX Симпозијум епизоотиолога и епидемиолога / XX Епизоотиолошки дани 99 health status (if no diagnostic tests were performed); 2) holdings in which the infection has been established (if there are cases of illness); 3) holdings free of sheep sheep, or arthritis and goat encephalitis (if all animals have been diagnosed at least once in the last 12 months with a negative serological finding if no clinical symptoms of the disease were detected during the epizootiological examination, and the herd was not introduced sick or seropositive throats). In order to determine the prevalence of sheep and goats and arthritis and goat encephalitis, sheep and goats are diagnosed on these sheep and goat farms, according to the monitoring program of the Ministry. Also, this Program is defined as a compulsory diagnostic examination of midday rams and goats used for natural mating, on middle sheep, or arthritis and encephalitis of the goat. The Plan of diagnostic testing of goats and sheep for arthritis and encephalitis and the maedi visna disease of sheep is being prepared on the basis of which the Program of the Ministry for suppression and eradication of these diseases will be developed. In this regard, the Veterinary Directorate undertook a series of measures and activities, formed the Expert Group and issued instructions and notifications for animal owners, veterinarians, participated in the education of owners and the development of the Diagnostic Testing Plan.