Barré N, Camus E
Iemvt-Craag, Pointe-a-Pitre, Guadeloupe, France.
Onderstepoort J Vet Res. 1987 Sep;54(3):435-7.
Experiments were conducted with Creole goats and Amblyomma variegatum ticks in Guadeloupe to investigate whether it is possible to transmit Cowdria ruminantium to susceptible hosts with nymphs fed in the larval stage on recovered goats. Of 88 batches of larvae fed after the return of the goats' temperature to normal, or after challenge or immunosuppression, only the 9 batches of larvae fed during the febrile reaction, 2 batches applied 2 and 3 days respectively after recovery, and a single batch applied 5 days after challenge, became infective. On average, blood appears to be infective for A. variegatum larvae for only an 8-day period associated with the temperature reaction following a primary infection. Recovered goats are not reservoirs of Cowdria, even if--with one exception in our experiment--they are reinfected after recovery.
在瓜德罗普岛，对克里奥尔山羊和变异革蜱进行了实验，以研究用在幼虫阶段以康复山羊为食的若虫是否有可能将反刍兽考德里氏体传播给易感宿主。在山羊体温恢复正常后、受到攻击或免疫抑制后喂食的88批幼虫中，只有在发热反应期间喂食的9批幼虫、康复后分别在第2天和第3天接种的2批幼虫以及攻击后第5天接种的1批幼虫具有感染性。平均而言，血液似乎仅在初次感染后的温度反应相关的8天内对变异革蜱幼虫具有感染性。康复后的山羊不是反刍兽考德里氏体的储存宿主，即使在我们的实验中有一个例外，即它们在康复后再次感染。
