Coxiella burnetii - Pathogenic Agent of Q (Query) Fever.
نویسندگان
چکیده
1.1.1 Structure C. burnetii is a member of the family of the Coxiellaceae bacteria and replicates intracellularly in cells of different species. Phylogenetically related bacteria include Legionellaceae, Francisellaceae, Pseudomonaceae, and other Gammaproteobacteria. Coxiella are small Gram-negative, pleomorphic, coccoid bacteria with a size of 0.2–1.0 m. They occur in 3 different forms: small cells (small cell variant, SCV) which are highly infectious, large cells (large cell variant, LCV) which develop also in cell culture, as well as spore-like particles (SLP) which are infectious and very robust to environmental conditions. Dependent on the host system, Coxiella undergoes a phase variation during growth [12]. In mammalian cells, bacteria grow as LCV, and form spore-like particles and 2 different antigenic forms described as Phase I and II.
منابع مشابه
The Frequency of IgM anti-Coxiella burnetii (Q fever) Antibodies among Slaughterhouse Workers in Kerman city, 2012
Background & Aim: Q fever is an important zoonotic disease caused by infection with Coxiella burnetii, a Gram negative, obligate intracellular bacterium classified within the order Legionellales. Farmers, veterinarians, abattoir workers and laboratory personnel are among persons at risk of Q fever. The aim of this study was to determine frequency of IgM anti-Coxiella burnetii antibodies in slau...
متن کاملCoxiella burnetii
Q fever has been described for the first time in 1935 as an outbreak of fever in workers of a slaughterhouse in Brisbane, Australia (Derrick, 1937). Derrick could not identify the aetiological agent therefore he defined the disease as “query fever”. Afterwards, in 1937, Burnet and Freeman (Burnet & Freeman, 1937) isolated a troublesome intracellular pathogen from mice inoculated with blood or f...
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Background and purpose: Coxiella burnetii infection (causative agent of Q fever) is a public health problem and a zoonotic disease with a global prevalence. The importance of zoonotic diseases and their impact on the health of people in a community is undeniable. The aim of this study was to investigate the prevalence of Coxiella burnetii in hard ticks isolated from livestock in different parts...
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Coxiella burnetii strain AuQ01 was isolated from the serum of an Australian acute Q fever patient and represents the first whole genome from this historical Q fever country. This new genome shows distinct differences from existing genomic data and will enhance the understanding of this query pathogen.
متن کاملPCR-Detection of Coxiella burnetii in Ticks Collected from Sheep and Goats in Southeast Iran
BACKGROUND There is a little data on Coxiella burnetii (Q fever agent) in Iran. Ticks may play a significant role in the transmission of C. burnetii among animals. The aim of this study was to use polymerase chain reaction for the detection of C. burnetii in ticks collected in Southeast Iran. METHODS One hundred and sixty ticks were collected from domestic animals in three localities of Kerma...
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عنوان ژورنال:
- Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie
دوره 41 1 شماره
صفحات -
تاریخ انتشار 2014