On 20 June 1998, the KwaZulu-Natal Nature Conservation Board ('the Board') held a game auction where buffalo were sold, described in the catalogue and elsewhere as disease-free, particularly free from corridor disease. Erf 1435 Sinoville (Pty) Ltd ('Sinoville'), represented by Graphorn, purchased six buffalo (Lot 801) for R636,000. These buffalo were subsequently released on the farm Kleine Waterval pursuant to a contract with Tangeni Boerdery Nr 2 ('Tangeni'), represented by Ehlers. Tangeni farmed cattle on this property. The buffalo turned out to be infected with corridor disease, which was transmitted to the cattle via brown ear ticks (bruinoorbosluise), resulting in the death of over 200 cattle and the destruction of the buffalo. The buffalo originated from Weenen Nature Reserve, which had received buffalo from Addo Elephant Park (disease-free) in 1983-1984, but had also received 24 buffalo from Spioenkop Nature Reserve in August 1996. Pathological tests revealed that the Weenen and Spioenkop buffalo were infected, though other source herds were not. The infection was traced to either the introduction of an infected buffalo from Pretoria Zoo (where corridor disease may have existed in 1979) or the introduction of infected brown ear ticks through capture equipment, bedding, or other animals moved from infected areas.