q fever in the southern california desert: epidemiology, clinical presentation and treatment.despite the absence of a natural reservoir for q fever in the desert of southern california, six cases have been identified during the past 32 years. during that period of time, two areas have been used by northern sheep ranchers from idaho and wyoming to import sheep to an area in the coachella valley through 1985. thereafter, because of housing development, the sheep area was moved to blythe along the colorado river. all but two of these patients probably acquired infection by coxiella burneti ...200616837704
national surveillance and the epidemiology of human q fever in the united states, 1978-2004.although q fever is considered enzootic in the united states, surveillance for human q fever has been historically limited. from 1978 through 1999, 436 cases (average = 20 per year) of human q fever were reported. after q fever became nationally reportable in 1999, 255 human q fever cases (average = 51 per year) were reported with illness onset during 2000 through 2004. the median age of cases was 51 years, and most cases were male (77%). the average annual incidence of q fever was 0.28 cases pe ...200616837706
the serologic prevalence of q fever (coxiella burnetii) complement-fixing antibodies in the peninsular bighorn sheep of southern california.q fever is a rare illness in the southern california desert. during the past 34 years only 6 patients have been diagnosed with the disease at the eisenhower medical center, a referral center for much of the desert and surrounding mountains. in all but 2 instances, q fever was identified in patients who have been in contact with imported domestic sheep who are brought to the desert to graze and lamb in the fall and winter. the sheep are sent back to idaho, wyoming, and montana in the spring. with ...200616896140
Coxiella burnetii, the Agent of Q Fever, in Domestic Sheep Flocks from Wyoming, United States.Abstract Coxiella burnetii, the agent of Q fever, is an intracellular bacterial pathogen. It has a nearly cosmopolitan distribution. We conducted a serological survey of domestic sheep herds for infections with C. burnetii in Wyoming following reports of abortion and open ewes. Based on the serologic evidence, there was no link between reproductive problems and exposure to C. burnetii. However, the overall prevalence of C. burnetii in WY sheep was 7%, which indicates that the agent is present ...201122022809
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