| epidemiology of colorado tick fever in montana, utah, and wyoming, 1995-2003. | colorado tick fever (ctf) is a biphasic, febrile illness caused by a coltivirus and transmitted by the rocky mountain wood tick, dermacentor andersoni, in the western united states and canada. symptoms generally include acute onset of fever, headache, chills, and myalgias; illness often lasts for 3 weeks or more. laboratory-confirmed cases of ctf were identified from public health department records in montana, utah, and wyoming, and from the centers for disease control and prevention diagnostic ... | 2010 | 19725767 |
| ectoparasites from elk (cervus elaphus nelsoni) from wyoming. | hides of nine elk, collected during the winter of 1986-1987 from the national elk refuge, wyoming (usa) were examined for ectoparasites. parasites recovered were mites, psoroptes sp. (five elk); lice, solenopotes ferrisi and bovicola (bovicola) longicornis (seven elk); and winter ticks, dermacentor albipictus (nine elk). three elk with severe scabies had an estimated 0.6 x 10(6), 3.8 x 10(6) and 6.5 x 10(6) mites, respectively. densities of mites were much higher in skin regions with severe derm ... | 1991 | 1920665 |