Other diseases, such as sleeping sickness, transmitted by tsetse flies are fatal if untreated, as is leishmaniasis, if the parasites that cause it – transmitted by tiny sandflies – invade the liver and spleen. Again, the misery caused by these infections exceeds the burden of tuberculosis or malaria.
其他疾病，例如采采蝇传播的昏睡病，如果不予治疗则会致人死命。微小的白蛉传播的利什曼病也是如此，如果致病的寄生虫侵入肝脏和脾脏的话。这些疾病造成的痛苦远大于肺结核和疟疾。