Summary (continued)
To achieve this aim, the authors collected 361 serum samples, 103 whole blood samples and 323 swabs from Al-Hasa, Dammam, Al-Jubail, Al-Qateef, Riyadh and Al-Qassim. Commercial enzyme-linked immunosorbent assay (ELISA) kits were used to detect AHSV antibodies and commercial real-time reverse transcriptase-polymerase chain reaction (RT–PCR) kits were used to detect AHSV nucleic acids in blood and swabs. The results of this study demonstrate the absence of anti-AHSV antibodies in the sera of tested animals. Furthermore, no viral nucleic acids were detected in the collected blood and swab samples, as evaluated by real-time AHSV–RT–PCR. Moreover, all tested samples collected during 2014–2016 were negative for AHSV. This confirms that the horse populations studied in the eastern and central regions of Saudi Arabia during 2014–2016 were AHSV free.