Four premises and 5 non-Thoroughbred horses affected. In a small number of cases viral abortion was diagnosed. In other cases viral diagnostic or pathology was not performed. Please refer to the 4th Quarter 1998 Report. Two virus isolations have been made from strains of imported frozen semen from 2 warmblood stallions.
Tests are ongoing.
Last reported case 31st March 1999. Diagnosed at the Onderstepoort Veterinary Institute by agent isolation. Outbreak limited affecting 17 not-Thoroughbreds on 8 premises. The first death occurred on 21st March 1999 and AHS was confirmed by OVI on 25th March 1999. A SRI report was sent to the OIE on 29th March 1999 and a supplementary report on 6th April.