Juhl J, Permin A
Department of Population Biology, University of Copenhagen, Universitetsparken 15, 2100, Copenhagen, Denmark.
Vet Parasitol. 2002 Apr 19;105(1):11-9. doi: 10.1016/s0304-4017(01)00646-x.
The effect of a primary infection with the haemoparasite Plasmodium gallinaceum on the establishment of a challenge infection with the nematode Ascaridia galli in chickens was studied. Four groups were infected as follows. Group 1: inoculated intravenously with 10(6) P. gallinaceum-infected erythrocytes on day 0; group 2: orally infected with 500 embryonated A. galli eggs on day 10; group 3: infected with P. gallinaceum on day 0 and A. galli on day 10; and group 3: non-infected control birds. The results of this investigation demonstrates that a primary infection with P. gallinaceum in chickens alters the course of a subsequent infection with A. galli. Thus, an antagonistic effect was seen in which the malaria infection caused a significant reduction on the establishment of the nematode in concurrently infected animals.
研究了鸡首次感染血寄生虫鸡疟原虫对随后感染线虫鸡蛔虫的影响。将四组鸡按如下方式感染。第1组：在第0天静脉接种10⁶个感染鸡疟原虫的红细胞；第2组：在第10天口服感染500枚受精的鸡蛔虫卵；第3组：在第0天感染鸡疟原虫，在第10天感染鸡蛔虫；第4组：未感染的对照鸡。本研究结果表明，鸡首次感染鸡疟原虫会改变随后感染鸡蛔虫的病程。因此，观察到一种拮抗作用，即疟疾感染导致同时感染的动物体内线虫的定殖显著减少。
