Coxiella burnetii, the etiological agent of Q Fever, is a zoonotic pathogen distributed worldwide. It has been reported that virulent strains of C. burnetii are poorly internalized by monocytes compared to avirulent variants. Virulence is also associated to the formation of pseudopodal extensions and transient reorganization of filamentous actin. In this article, we investigated the ability of ...

Infections due to Coxiella burnetii, the causative agent of Q fever, are uncommon in the United States. Cases of chronic Q fever are extremely rare and most often manifest as culture-negative endocarditis in patients with underlying valvular heart disease. We describe a 31-year-old farmer from West Virginia with a history of congenital heart disease and recurrent fevers for 14 months who was di...

burnetii infection and related reproductive performance in high producing dairy cows. Res Vet Sci. 2012;93:67–73. http:// dx.doi.org/10.1016/j.rvsc.2011.07.017 5. Berri M, Souriau A, Crosby M, Rodolakis A. Shedding of Coxiella burnetii in ewes in two pregnancies following an episode of Coxiella abortion in a sheep flock. Vet Microbiol. 2002;85:55–60. http://dx.doi. org/10.1016/S0378-1135(01)004...

background: q fever is a zoonotic disease caused by coxiella burnetii . there is no information about this disease in pregnant women in iran. the aim of this study was to investigate the seroprevalence of c. burnetii infection among pregnant women in southwestern (ahvaz) and northern (parsabad) iran and further to comparison its prevalence in normal and abnormal pregnancies. methods: a total of...

Reliable detection of Coxiella burnetii shedders is a critical point for the control of the spread of this bacterium among animals and from animals to humans. Coxiella burnetii is shed by ruminants mainly by birth products (placenta, birth fluids), but may also be shed by vaginal mucus, milk, and faeces, urine and semen. However, the informative value of these types of samples to identify shedd...

1 Host-Parasite Interactions Section, Laboratory of Intracellular Parasites, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America, 2 Coxiella Pathogenesis Section, Laboratory of Intracellular Parasites, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Nati...

Dromedary camels (Camelus dromedarius) are an important protein source for people in semi-arid and arid regions of Africa. In Kenya, camel populations have grown dramatically in the past few decades resulting in the potential for increased disease transmission between humans and camels. An estimated four million Kenyans drink unpasteurized camel milk, which poses a disease risk. We evaluated th...

Bacteria genetically related to Coxiella burnetii have been found in ticks. Using molecular techniques, we detected Coxiella-like bacteria, here named Candidatus Coxiella massiliensis, in skin biopsy samples and ticks removed from patients with an eschar. This organism may be a common agent of scalp eschar and neck lymphadenopathy after tick bite.

Coxiella burnetii and Coxiella-like bacteria (CLB) are genetically and ecologically distinct despite some genetic similarities. Furthermore, CLB are exceptionally diverse and widespread in ticks, but rarely detected in domestic animals. Since Coxiella bacteria can be transmitted from infected horses by inhalation or by coming in contact with ticks during activities such as horseback riding, it ...