Austin F J
Am J Trop Med Hyg. 1978 Sep;27(5):1045-8. doi: 10.4269/ajtmh.1978.27.1045.
Ten strains of Johnston Atoll (JA) virus were isolated from Ornithodoros capensis collected in a Gannet (Sula bassana serrator) colony in New Zealand. Its sensitivity to ether and sodium deoxycholate were confirmed and it was shown to have an RNA genome. It multiplied in day-old chicks but, unlike the prototype virus, it was not pathogenic for them. Transmission experiments and the high incidence of birds with neutralizing antibody indicate that the virus is maintained in the colony by a cycle involving ticks and Gannets. This is the first recorded tickborne arbovirus in New Zealand and extends the known range of JA virus from the tropics into the temperate zone.
从新西兰一个塘鹅（Sula bassana serrator）聚居地采集的海角钝缘蜱中分离出10株约翰斯顿岛（JA）病毒。证实了其对乙醚和脱氧胆酸钠的敏感性，并表明它具有RNA基因组。它能在一日龄雏鸡中增殖，但与原型病毒不同的是，它对雏鸡没有致病性。传播实验以及具有中和抗体的鸟类的高发病率表明，该病毒通过涉及蜱和塘鹅的循环在聚居地中得以维持。这是新西兰首次记录的蜱传虫媒病毒，将JA病毒已知的分布范围从热带地区扩展到了温带地区。
