SAEVA Proceedings 2016 | Page 33

  120   105   Number  of  cases   100   89   80   64   60   40   39   20   13   18   24   25   30   26   22   31   30   28   47   50   59   42   32  32   5   1987   1988   1989   1990   1991   1992   1993   1994   1995   1996   1997   1998   1999   2000   2001   2002   2003   2004   2005   2006   2007   2008   2009   2010   2011   2012   2013   0   20   25   30   44   47   57   Year   Fig 1: Number of PRDS cases reported in Thoroughbred racehorses competing on the Highveld of South Africa from 1987 to 2013. Proceedings  of  the  South  African  Equine  Veterinary  Association  Congress  2016   32