Results 21 to 30 of about 9,765,276 (198)

Proteins of typhus and spotted fever group rickettsiae [PDF]

Infection and Immunity, 1976
Purified radioactive rickettsiae were obtained from irradiated and cycloheximide-inhibited L cells, and their proteins were analyzed by polyacrylamide gel electrophoresis. Rickettsial species could be distinguished by comparing the relative mobilities of constituent proteins after migration of two differentially labeled preparations in a single gel ...
C S, Eisemann, J V, Osterman
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Properties of selected rickettsiae of the spotted fever group [PDF]

Infection and Immunity, 1980
Eight strains of spotted fever group rickettsiae were studied to gain insight into the extent of variation of their properties. Two standard strains of Rickettsia rickettsii and one strain of Rickettsia conorii were included among the eight for comparison.
R L, Anacker, T F, McCaul, W, Burgdorfer, R K, Gerloff   +3 more
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Molecular evidence of novel spotted fever group rickettsia species in amblyomma albolimbatum ticks from the shingleback skink (Tiliqua rugosa) in southern western australia [PDF]

, 2021
Tick-borne infectious diseases caused by obligate intracellular bacteria of the genus Rickettsia are a growing global problem to human and animal health.
Tadepalli, M, Gemma Vincent, Graves, Stephen, Hii, Sze Fui, Watharow, Simon, Hii, SF, Stenos, John, Watharow, S, Simon Watharow, Graves, S, Stephen Graves, Mythili Tadepalli, Vincent, G, Vincent, Gemma, Stenos, J, Sze Fui Hii, John Stenos, Tadepalli, Mythili   +17 more
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Clinical case of spotted fever group rickettsiae [PDF]

International Journal of Infectious Diseases, 2019
We report a Astrakhan ricketsiosis fever in woman who came from Astrakhan. On admission she had fever, intoxication syndrome, exanthema. In complex examination of blood serum by ELISA were reveled IgM and IgG to Rickettsia conorii on the 15th day of the disease.
Elena Volchkova, Karina Umbetova, Lyudmila Karan, Yuliya Konnova, Andrew Gorobchenko, Olga Belaia, Elena Burdova   +6 more
openaire   +3 more sources

Diagnostic Value of IgA Antibody Measurement in Tick-Borne Spotted Fever (Astrakhan Rickettsial Fever)

Microbiology Spectrum, 2022
Tick-borne spotted fevers caused by Rickettsia occur worldwide. The symptoms of this bacterial infection are similar to those of viral infection, and thus, diagnostic accuracy has special clinical importance.
Nina S. Smirnova, Alexey V. Kostarnoy, Alexey V. Kondratev, Petya G. Gancheva, Daniil A. Grumov, Alexander L. Gintsburg   +5 more
doaj   +1 more source

Molecular detection of Rickettsia africae in Amblyomma ticks collected in cattle from Southern and Central Mozambique

Journal of Infection in Developing Countries, 2020
Introduction: Rickettsia are Gram-negative and obligate intracellular bacteria, which cause typhus and spotted fever-like diseases in humans. In Africa, Rickettsia africae of the Spotted Fever Group Rickettsia (SFGR) is the etiologic agent of the ...
Vlademiro Magaia, Elisa Taviani, Nidia Cangi, Luis Neves   +3 more
doaj   +1 more source

Restriction of the growth of a nonpathogenic spotted fever group rickettsia [PDF]

FEMS Immunology & Medical Microbiology, 2012
The growth kinetics of pathogenic and nonpathogenic rickettsiae were compared to elucidate the mechanism responsible for the pathogenicity of rickettsiae. Vero and HeLa cells derived from mammals were inoculated with a nonpathogenic species of spotted fever group rickettsia, Rickettsia montanensis, before being infected with the pathogenic species ...
Tsuneo, Uchiyama, Mahomi, Kishi, Motohiko, Ogawa   +2 more
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Spotted fever group rickettsiae in ticks in Turkey

Ticks and Tick-borne Diseases, 2014
One hundred twenty-six ticks belonging to 12 tick species were collected from humans, domestic and wild animals, and from the ground as unfed (questing ticks) from distinct localities in Turkey in 2011. Ticks were individually tested by polymerase chain reaction (PCR) for Rickettsia spp., amplifying citrate synthase (gltA), and outer membrane protein ...
Ömer, Orkun, Zafer, Karaer, Ayşe, Çakmak, Serpil, Nalbantoğlu   +3 more
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Novel rickettsia in ticks, Tasmania, Australia [PDF]

, 2009
A novel rickettsia was detected in Ixodes tasmani ticks collected from Tasmanian devils. A total of 55% were positive for the citrate synthase gene by quantitative PCR.
Nathan Unsworth, Cox, E., Fenwick, S., Graves, S., Izzard, L., Stan Fenwick, Erika Cox, Leonard Izzard, John Stenos, Unsworth, N., Stenos, J., Stephen Graves   +11 more
core   +1 more source

Spotted Fever Group Rickettsiae in Ticks, Morocco

Emerging Infectious Diseases, 2008
A total of 370 ticks, encompassing 7 species from 4 genera, were collected during 2002-2006 from domestic animals and vegetation in the Taza region of northeastern Morocco. Rickettsial DNA was identified in 101 ticks (27%) by sequencing PCR products of fragments of the citrate synthase and outer membrane protein genes of Rickettsia spp.
Mhammed Sarih, Cristina Socolovschi, Najma Boudebouch, Mohammed Hassar, Didier Raoult, Philippe Parola   +5 more
openaire   +3 more sources