Electron Microscopic Studies on thein vitroProliferation of Spotted Fever Group Rickettsia Isolated in Japan
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چکیده
منابع مشابه
First report of spotted fever group Rickettsia in Cuba.
The spotted fever group of Rickettsia consists of multiple species anging from microorganisms with unknown pathogenicity such s “Candidatus Rickettsia amblyommii” (hereafter R. amblyommii) o potentially lethal pathogens such as R. rickettsii, the causative gent of Rocky Mountain spotted fever (RMSF) in humans. Rickttsia amblyommii is found mainly in ticks belonging to Amblyomma enus, and report...
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Three-hundred ninety-two adult Dermacentor variabilis were collected from six Maryland counties during the spring, summer, and fall of 2002. Infection prevalence for spotted fever group Rickettsia was 3.8%, as determined by polymerase chain reaction. Single strand conformational polymorphism (SSCP) analysis followed by sequencing indicated that all infections represented a single rickettsial ta...
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After conventional molecular and serologic testing failed to diagnose the cause of illness, deep sequencing identified spotted fever group Rickettsia DNA in a patient's blood sample. Sequences belonged to R. honei, the causative agent of Flinders Island spotted fever. Next-generation sequencing is proving to be a useful tool for clinical diagnostics.
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Eight rickettsialike organisms were isolated in tissue culture from ticks of dogs and cattle from various areas of Zimbabwe. These isolates and a reference strain, Rickettsia conorii Simko, were tested by microimmunofluorescence against homologous and heterologous antisera raised in mice. From the titers obtained by this method, specificity differences (SPDs) were calculated between each of the...
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To determine the phylogenetic position of two new rickettsial strains isolated from ticks in China, 16S ribosomal DNA, gltA, and ompA (apart from the tandem repeat units) genes were amplified by PCR and sequenced. The phylogenetic relationships between these strains and other rickettsiae were inferred from the comparison of sequences of the three genes by the parsimony, neighbor-joining, and ma...
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ژورنال
عنوان ژورنال: Microbiology and Immunology
سال: 1991
ISSN: 0385-5600
DOI: 10.1111/j.1348-0421.1991.tb01594.x