A Survey of Equine Herpes Virus 4 Infection in Four Provinces of Iran Using Real Time PCR Taqman Assay
2018
Tazikeh, Arash | Raoofi, Afshin | madadgar, omid | Akbarein, Hesam | Ghadrdan-Mashhadi, Alireza
BACKGROUND: Herpes virus infections are ubiquitous in equine populations worldwide, among them equine herpes virus 4 (EHV-4) is one of the major cause of economic losses in equine industry. Infection with equine herpes virus 4 (EHV4) is well recognized as a cause of respiratory disease. OBJECTIVES: Evaluation of prevalence of the EHV4 in horses with clinical signs or history associated with these viruses from four provinces of Iran using the most sensitive method, Real Time PCR Taqman assay. METHODES: Blood samples and nasal swabs were taken from 150 horses with clinical signs or history associated with these viruses from four provinces (Tehran, Golestan, West Azarbaijan and Khuzestan) of Iran. DNA of samples extracted then were used for detection by Real Time PCR. RESULTS: From 150 sampled horses, a total of 18 (12%) were found to be positive for EHV-4. A total of 7 (4.6%) blood samples and 11 (7.3%) nasal swab samples were found to be positive for EHV-4. Out of 47 sampled horses from Golestan province, 45 sampled horses from Khuzestan province, 37 sampled horses from Tehran province and 21 sampled horses from West Azarbaijan, 6 (12.76%), 3 (6.6%), 5 (13.5%) and 4 (19.04%) were positive for EHV-4, respectively. CONCLUSIONS: This survey confirm the presence of EHV-4 in these provinces of Iran thus consideration should be given to preventive and control programs to dissemination of these viruses.
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