| concurrent sick building syndrome and chronic fatigue syndrome: epidemic neuromyasthenia revisited. | sick building syndrome (sbs) is usually characterized by upper respiratory complaints, headache, and mild fatigue. chronic fatigue syndrome (cfs) is an illness with defined criteria including extreme fatigue, sore throat, headache, and neurological symptoms. we investigated three apparent outbreaks of sbs and observed another more serious illness (or illnesses), characterized predominantly by severe fatigue, that was noted by 9 (90%) of the 10 teachers who frequently used a single conference roo ... | 1994 | 8148452 |
| echinococcus granulosus in gray wolves and ungulates in idaho and montana, usa. | we evaluated the small intestines of 123 gray wolves (canis lupus) that were collected from idaho, usa (n=63), and montana, usa (n=60), between 2006 and 2008 for the tapeworm echinococcus granulosus. the tapeworm was detected in 39 of 63 wolves (62%) in idaho, usa, and 38 of 60 wolves (63%) in montana, usa. the detection of thousands of tapeworms per wolf was a common finding. in idaho, usa, hydatid cysts, the intermediate form of e. granulosus, were detected in elk (cervus elaphus), mule deer ( ... | 2009 | 19901399 |
| new records of hair follicle mites (demodecidae) from north american cervidae. | individuals of three species of cervids, with varying degrees of alopecia, were examined for ectoparasites: rocky mountain elk (cervus elaphus nelsoni) and mule deer (odocoileus hemionus hemionus) in colorado and white-tailed deer (odocoileus virginianus) in south dakota. hair follicle mites were recovered and identified as demodex kutzeri, a species originally described from the european red deer (cervus elaphus, from austria) and the sika deer (cervus nippon pseudaxis, captive in germany). the ... | 2010 | 20688655 |
| paleozoological data suggest euroamerican settlement did not displace ursids and north american elk from lowlands to highlands. | the hypothesis that euroamerican settlement displaced some populations of large mammal taxa from lowland plains habitats to previously unoccupied highland mountain habitats was commonly believed in the late nineteenth and early twentieth centuries. by the middle twentieth century biologists had come to favor the hypothesis that euroamerican colonization resulted in the extirpation of populations of large mammal in lowland habitats and those taxa survived in pre-existing relict populations in the ... | 2011 | 21544707 |