In the Chad project the IACT discovered that truck drivers passing through Chad, which is a crossroads nation in north-central Africa, relieve their boredom by patronizing roadside prostitutes, and AIDS thus spreads along the highway.
在對查德的研究中，台灣國際醫療行動協會發現，查德位居中非交通樞紐，各國卡車司機會在漫漫無聊的運輸旅程中於公路兩旁嫖妓，愛滋病也就以公路為中心向外蔓延。