Kilgour V, Godfrey D G
Trop Anim Health Prod. 1978 Aug;10(3):145-8. doi: 10.1007/BF02235327.
In Nigeria in 1974 and 1975 there was an apparent sharp reduction in the prevalence of trypanosomiasis of cattle at several markets and control points. Some of the decrease appears to be due to the tsetse eradication programmes and Sahelian drought, but the change to lory transport as the principal means of moving cattle from the northern grazing areas to the south-western markets, which replaced a trek of at least three weeks, was probably an important factor.
1974年和1975年，尼日利亚多个市场和控制点的牛锥虫病流行率明显大幅下降。部分下降似乎归因于采采蝇根除计划和萨赫勒地区干旱，但运输方式的改变可能是一个重要因素，当时采用卡车运输取代了至少为期三周的长途驱赶，成为将牛从北部牧区运往西南部市场的主要运输方式。
