Rickman R, Kanyangala S
Department of Parasitology, Tropical Diseases Research Centre, Ndola, Zambia.
East Afr Med J. 1990 Jun;67(6):413-8.
To confirm an earlier observation, that some T.b. rhodesiense isolates from sleeping sickness cases had failed to infect normally susceptible Wistar rats, blood samples, freshly drawn from 21 patently parasitaemic SS patients, were each inoculated simultaneously into 3 Swiss T.O. White mice, 3 young Wistar rats and 3 Mastomys natalensis. With the sole exception of one Mastomys, which failed to become infected, the 21 stocks infected all the inoculated rodents. Levels and durations of parasitaemias were significantly less in Mastomys than in either the Swiss mice or the Wistar rats suggesting that, although very susceptible to T.b. gambiense and thus eminently suitable for the isolation of this parasite sub-species, they are much less so for the isolation of T.b. rhodesiense in Zambia.
为了证实之前的一项观察结果，即一些来自昏睡病病例的罗德西亚布氏锥虫分离株未能感染通常易感的Wistar大鼠，从21例明显有寄生虫血症的冈比亚锥虫病患者身上 freshly drawn的血样，分别同时接种到3只瑞士TO白色小鼠、3只幼年Wistar大鼠和3只南非多乳鼠体内。除了一只未能被感染的南非多乳鼠外，这21份样本感染了所有接种的啮齿动物。南非多乳鼠体内寄生虫血症的水平和持续时间明显低于瑞士小鼠或Wistar大鼠，这表明，尽管它们对布氏冈比亚锥虫非常易感，因此非常适合分离这种寄生虫亚种，但对于在赞比亚分离布氏罗德西亚锥虫来说，它们的易感性要低得多。
原文中“freshly drawn”翻译为“刚抽取的”更合适，但按照要求不能添加解释，所以保留原文形式。
