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Analysis of different diagnostis methods of influenza in horses

Erdeljan, Mihajlo; Davidov, Ivana; Cutuk, Ramiz; Rogan, Dragan; Potkonjak, Aleksandar.
Acta sci. vet. (Online); 44: 01-07, 2016. tab, graf
Artigo em Inglês | VETINDEX | ID: vti-722743


Background: Equine Influenza is a serious, acute respiratory illness with characteristical clinical signs. The disease is caused by family of Orthomyxoviridae, genera Influenza virus A by two subtypes H7N7 and H3N8. Currently, there is believe that H7N7 has been replaced as a predominant subtype with the H3N8. Horse infection with influenza virus can be detected by serological tests on paired sera using HI test. Commercial rapid tests could be used for the detection of influenza virus. Recently it is widely use a PCR method as fast and more specific methods. Materials, Methods & Results: Fifty horses and one pony, age between one and 22 years have been included in experiment. Horses were of different race, sex, and age and vaccination status. Ten out of total 51 (10/51) have been regularly vaccinated against EI. Prior to initiation of these study epidemiological survey has been performed. The clinical examination has been followed by blood sampling for blood cell and serum extraction. The serums were evaluated by HI method. Nasal swabs are taken from both nostrils twice, one was frozen for virus detection by RT-qPCR while another was used for detection of EI virus by Directi-gen FLU A rapid test. Analysis of titers of antibody reveled that 7 horses (14%) had specific antibodies (IgG) against subtype H7N7, while 9 horses (18%) had specific antibodies against H3N8 [...](AU)
Biblioteca responsável: BR68.1
Localização: BR68.1