Neiland K A
J Wildl Dis. 1975 Jan;11(1):45-53. doi: 10.7589/0090-3558-11.1.45.
Antibodies against rangiferine brucellosis, Brucella suis type 4, are commonly found in the serum of various domestic and wild alaskian carnivores which feed on caribou, Rangifer tarandus granti, arctic Alaska. Sled dogs from five native villages on the range of the Artic caribou herd, but not from two villages on the the range of the Porcupine caribou herd, are commonly infected. Wolves (Canis lupus) and red foxes (Vulpes fulva) are less commonly infected. About 90% of the grizzly bears (Ursus arctos horribilis) associated with the Artic caribou herd and 30% of those associated with the porcupine caribou herd show serologic signs of exposure to Brucella, presumalby the enzootic strain present in Alaska caribou. This is the first evidence of natural Brucella infection in bears. It is concluded that infection of predators by enzootic strains of Brucella present in prey species (e.g., ruminants) is common to many areas of the world. Evidence from the literature and unpublished experimental data suggest that such infections may intefere with reproduction in wild species, but additional study is needed to clearly resolve this question.
在阿拉斯加北极地区以北美驯鹿（Rangifer tarandus granti）为食的各种家养和野生食肉动物的血清中，通常能发现抗驯鹿布鲁氏菌病（4型猪布鲁氏菌）的抗体。来自北极驯鹿群活动范围内五个原住民村庄的雪橇犬普遍受到感染，但豪猪驯鹿群活动范围内两个村庄的雪橇犬未受感染。狼（Canis lupus）和赤狐（Vulpes fulva）受感染的情况较少见。与北极驯鹿群有关的灰熊（Ursus arctos horribilis）中约90%以及与豪猪驯鹿群有关的灰熊中约30%呈现出接触布鲁氏菌的血清学迹象，推测是阿拉斯加驯鹿中存在的地方流行菌株所致。这是熊自然感染布鲁氏菌的首个证据。得出的结论是，猎物物种（如反刍动物）中存在的布鲁氏菌地方流行菌株感染捕食者在世界许多地区都很常见。文献证据和未发表的实验数据表明，此类感染可能会干扰野生物种的繁殖，但还需要进一步研究才能明确解决这个问题。
