Clover J R, Hofstra T D, Kuluris B G, Schroeder M T, Nelson B C, Barnes A M, Botzler R G
California Department of Health Services, Santa Rosa 95404.
J Wildl Dis. 1989 Jan;25(1):52-60. doi: 10.7589/0090-3558-25.1.52.
From 1983 to 1985, 463 serum samples from 11 species of mammals in Redwood National Park (RNP) (California, USA) were evaluated for antibodies to Yersinia pestis by the passive hemagglutination method. Yersinia pestis antibodies occurred in serum samples from 25 (36%) of 69 black bears (Ursus americanus), one (50%) of two raccoons (Procyon lotor), five (3%) of 170 dusky-footed woodrats (Neotoma fuscipes), and one (less than 1%) of 118 deer mice (Peromyscus maniculatus). Two hundred seventy-three flea pools, consisting of 14 species of fleas, were collected from small mammals and woodrat nest cups. Viable Y. pestis were not isolated from any of the flea pools. Significant between-year variations in the frequencies of seropositive bear or small mammal sera were not observed. A significantly higher frequency of plague antibodies was observed in bear sera taken during September collections. Frequencies of seropositive bear sera did not vary significantly by sex or age group of bears. Significant differences were not observed in the frequencies of seropositive small mammals by forest habitat type in which they were captured. This is the first report of Y. pestis infection in Redwood National Park, and the first detailed report of Y. pestis activity in a temperate rainforest.
1983年至1985年期间，采用被动血凝法对美国加利福尼亚州红木国家公园（RNP）11种哺乳动物的463份血清样本进行了鼠疫耶尔森菌抗体检测。在69只黑熊（美洲黑熊）中的25只（36%）、2只浣熊（北美浣熊）中的1只（50%）、170只暗足林鼠（棕背林鼠）中的5只（3%）以及118只鹿鼠（白足鼠）中的1只（不到1%）的血清样本中检测到鼠疫耶尔森菌抗体。从小型哺乳动物和林鼠巢杯中收集了由14种跳蚤组成的273个跳蚤样本池。未从任何跳蚤样本池中分离出活的鼠疫耶尔森菌。未观察到血清阳性的熊或小型哺乳动物血清频率在年份之间存在显著差异。在9月采集的熊血清中观察到鼠疫抗体频率显著更高。血清阳性的熊血清频率在熊的性别或年龄组之间没有显著差异。在捕获小型哺乳动物的森林栖息地类型方面，血清阳性小型哺乳动物的频率未观察到显著差异。这是红木国家公园鼠疫耶尔森菌感染的首次报告，也是温带雨林中鼠疫耶尔森菌活动的首次详细报告。
