Joshua R A, Herbert W J, White R G
Tropenmed Parasitol. 1982 Sep;33(3):153-7.
Three unrelated stocks of Trypanosoma (Trypanozoon) brucei were tested for their ability to infect domestic chickens. One of them, Lugala/55/EATRO/459, regularly produced a chronic infection. This was characterized by a low parasitemia (3-100 mouse infective organisms per ml of blood) that lasted for nine months in pullets and over one year in cockerels. Advances and remissions of the parasitemia were detected during the course of the infection. There was no obvious impairment of the health of the birds and their growth rate was indistinguishable from that of uninfected chickens. A second stock of T. brucei produced a transient infection that lasted for a few days only and a third failed to infect. These observations, of persistent symptomless infections, raise the possibility that domestic chickens and other birds may act as reservoirs in the cycle of infection in nature, as do many game animals.
对三种不相关的布氏锥虫（锥虫属）株系进行了感染家鸡能力的测试。其中之一，Lugala/55/EATRO/459，能持续引发慢性感染。其特征为低虫血症（每毫升血液中有3 - 100个感染小鼠的生物体），在小母鸡中持续九个月，在公鸡中持续一年以上。在感染过程中可检测到虫血症的起伏。鸟类的健康没有明显受损，其生长速度与未感染鸡的生长速度没有差异。第二种布氏锥虫株系引发了仅持续几天的短暂感染，第三种则未能感染。这些关于持续性无症状感染的观察结果，增加了家鸡和其他鸟类可能像许多野生动物一样，在自然感染循环中充当宿主的可能性。
