Taxobox color lightgrey image Rickettsia rickettsii.jpg image caption Rickettsia rickettsii domain Bacteria ... Rickettsia genus authority Henrique da Rocha Lima da Rocha Lima , 1916 subdivision ranks Species subdivision Rickettsia aeschlimannii ref Beati, L. Meskini, M., et al. 1997 , http ijs.sgmjournals.org content 47 2 548.long Rickettsia aeschlimannii sp. nov., a new spotted fever group rickettsia associated with Hyalomma marginatum ticks , Int J Syst Bacteriol 47 2 548 554 ref br Rickettsia africae ref Kelly, P.J. Beati, L., et al. 1996 , http ijs.sgmjournals.org content 46 2 611.long Rickettsia ... 614 ref br Rickettsia akari ref name list Cite book editor last Skerman editor first VBD editor2 last ... ref br Rickettsia asiatica ref Fujita, H. Fournier, P. E., et al. 2006 , http ijs.sgmjournals.org content 56 10 2365.long Rickettsia asiatica sp. nov., isolated in Japan , Int J Syst Evol Microbiol 56 Pt 10 2365 2368 ref br Rickettsia australis ref name list br Rickettsia canadensis ref name list ... J Syst Bacteriol 47 908 909 ref br Rickettsia conorii ref name list br Rickettsia cooleyi ref Billings ... of a novel Rickettsia species from Ixodes scapularis in Texas , Emerg Infect Dis 4 2 305 309 ref br Rickettsia felis ref La Scola, B. Meconi, S., et al. 2002 , http ijs.sgmjournals.org content 52 6 2035.long Emended description of Rickettsia felis Bouyer et al . 2001 , a temperature dependent cultured bacterium , Int J Syst Evol Microbiol 52 Pt 6 2035 2041 ref br Rickettsia heilongjiangensis br Rickettsia helvetica br Rickettsia honei br Rickettsia hulinii br Rickettsia japonica br Rickettsia massiliae br Rickettsia montanensis br Rickettsia parkeri ref name list br Rickettsia peacockii br Rickettsia prowazekii ref name list br Rickettsia rhipicephali br Rickettsia rickettsii ref name list br Rickettsia sibirica ref name list br Rickettsia slovaca br Rickettsia tamurae br Rickettsia typhi ref name list br etc. Rickettsia is a genus of Motility non motile , Gram negative , Endospore ... more details
italic title Taxobox color lightgrey name Rickettsia phylum Proteobacteria classis Alphaproteobacteria ordo Rickettsiales familia Rickettsiaceae genus Rickettsia species typhi Rickettsia typhi is a species of the genus Rickettsia . It is the causative agent of Murine typhus . ref name pmid15317790 cite journal author McLeod MP, Qin X, Karpathy SE, et al. title Complete genome sequence of Rickettsia typhi and comparison with sequences of other rickettsiae journal J. Bacteriol. volume 186 issue 17 pages 5842 55 year 2004 month September pmid 15317790 pmc 516817 doi 10.1128 JB.186.17.5842 5855.2004 url http jb.asm.org cgi pmidlookup?view long&pmid 15317790 ref ref name pmid16893625 cite journal author Henry KM, Jiang J, Rozmajzl PJ, Azad AF, Macaluso KR, Richards AL title Development of quantitative real time PCR assays to detect Rickettsia typhi and Rickettsia felis , the causative agents of murine typhus and flea borne spotted fever journal Mol. Cell. Probes volume 21 issue 1 pages 17 23 year 2007 month February pmid 16893625 doi 10.1016 j.mcp.2006.06.002 url http linkinghub.elsevier.com retrieve pii S0890 8508 06 00050 8 ref The genome is similar to that of Rickettsia prowazekii . ref name pmid16481486 cite journal author Walker DH, Yu XJ title Progress in rickettsial genome analysis from pioneering of Rickettsia prowazekii to the recent Rickettsia typhi spread by the fleas and ticks of flying squirrels journal Ann. N. Y. Acad. Sci. volume 1063 issue 1 pages 13 25 year 2005 month December pmid 16481486 doi 10.1196 annals.1355.003 url http www.blackwell synergy.com openurl?genre article&sid nlm pubmed&issn 0077 8923&date 2005&volume 1063&spage 13 ref References reflist Gram negative bacterial diseases Flea borne diseases Category Rickettsiales medicine stub fr Rickettsia typhi it Rickettsia mooseri ... more details
Rickettsia africae is a species of Rickettsia . It can cause African tick bite fever . ref name pmid19379498 cite journal author Fournier PE, El Karkouri K, Leroy Q, et al. title Analysis of the Rickettsia africae genome reveals that virulence acquisition in Rickettsia species may be explained by genome reduction journal BMC Genomics volume 10 issue pages 166 year 2009 pmid 19379498 pmc 2694212 doi 10.1186 1471 2164 10 166 url http www.biomedcentral.com 1471 2164 10 166 ref References reflist Gram negative proteobacterial diseases Category Rickettsiales ... more details
Rickettsia japonica is a species of Rickettsia . ref name pmid19961684 cite journal author Hanaoka N, Matsutani M, Kawabata H, et al. title Diagnostic assay for Rickettsia japonica journal Emerging Infect. Dis. volume 15 issue 12 pages 1994 7 year 2009 month December pmid 19961684 doi url http www.cdc.gov eid content 15 12 1994.htm ref ref name pmid1581190 cite journal author Uchida T, Uchiyama T, Kumano K, Walker DH title Rickettsia japonica sp. nov., the etiological agent of spotted fever group rickettsiosis in Japan journal Int. J. Syst. Bacteriol. volume 42 issue 2 pages 303 5 year 1992 month April pmid 1581190 doi 10.1099 00207713 42 2 303 url http ijs.sgmjournals.org cgi pmidlookup?view long&pmid 1581190 ref It can cause Japanese spotted fever . References reflist Gram negative proteobacterial diseases Category Rickettsiales ... more details
Rickettsia australis is a bacterium that causes a medical condition called Queensland tick typhus . ref name Bolognia cite book author Rapini, Ronald P. Bolognia, Jean L. Jorizzo, Joseph L. title Dermatology 2 Volume Set publisher Mosby location St. Louis year 2007 pages 1130 isbn 1 4160 2999 0 oclc doi accessdate ref The probable vectors are the tick species, Ixodes holocyclus and Ixodes tasmani . Small marsupials are suspected reservoirs of this bacterium. ref Definition Rickettsia Australis, Medilexicon http www.medilexicon.com medicaldictionary.php?t 78537 ref See also Rickettsia rickettsii References reflist Gram negative proteobacterial diseases Category Rickettsiales Dermatology stub ... more details
Rickettsia honei is a species of Rickettsia . ref name pmid9828442 cite journal author Stenos J, Roux V, Walker D, Raoult D title Rickettsia honei sp. nov., the aetiological agent of Flinders Island spotted fever in Australia journal Int. J. Syst. Bacteriol. volume 48 Pt 4 issue pages 1399 404 year 1998 month October pmid 9828442 doi 10.1099 00207713 48 4 1399 url http ijs.sgmjournals.org cgi pmidlookup?view long&pmid 9828442 ref It can cause Flinders Island spotted fever . References reflist Gram negative proteobacterial diseases Category Rickettsiales ... more details
out that Dermacentor reticulatus ticks in Croatia are infected with Rickettsia helvetica 10 or Rickettsia ... 15 1 98.htm title Rickettsia helvetica in Ticks & 124 CDC EID publisher Cdc.gov date 2008 12 23 accessdate ... more details
Rickettsia sibirica is a species of Rickettsia . ref name pmid20331680 cite journal author Harrus S, Perlman Avrahami A, Mumcuoglu KY, Morick D, Baneth G title Molecular detection of Rickettsia massiliae, Rickettsia sibirica mongolitimonae and Rickettsia conorii israelensis in ticks from Israel journal Clin Microbiol Infect volume 17 issue 2 pages 176 80 year 2010 month March pmid 20331680 doi 10.1111 j.1469 0691.2010.03224.x ref This bacterium is the Pathogen etiologic agent of North Asian tick typhus , which is also known as Siberian tick typhus. ref name parola cite journal author Parola P, Paddock CD, Raoult D title Tick Borne Rickettsioses around the World Emerging Diseases Challenging Old Concepts journal Clinical Microbiology Reviews volume 18 pages 719 756 year 2005 doi 10.1128 CMR.18.4.719 756.2005 pmid 16223955 pmc 1265907 ref The tick s that transmit it are primarily various species of Dermacentor and Haemaphysalis . ref name eldridge citation series Medical Entomology A Textbook on Public Health and Veterinary Problems Caused by Arthropods first1 J. last1 Piesman first2 K.L. last2 Gage editor last Eldridge editor first B.F. editor2 last Edman editor2 first J.D. contribution Bacterial and Rickettsial Diseases pages 402 publisher Kluwer Academic Publishers location Dordrecht year 2004 edition 2nd isbn 1402017944 google books with page C7OxOqTKYS8C see 402 rickettsia sibirica ref References reflist Gram negative proteobacterial diseases Category Rickettsiales ... more details
italic title Taxobox color lightgrey image Rickettsia conorii in Vero.gif image width 250px image caption Rickettsia conorii observed in Vero cells red rods magnification 1,000 . ref cite journal author Rovery C Brouqui P Raoult D title Questions on Mediterranean Spotted Fever a Century after Its Discovery journal Emerg Infect Dis volume 14 pages 1360 1367 year 2008 doi 10.3201 eid1409.071133 issue 9 pmid 18760001 pmc 2603122 ref domain Bacteria phylum Proteobacteria classis Alphaproteobacteria ordo Rickettsiales familia Rickettsiaceae genus Rickettsia species R. conorii binomial Rickettsia conorii binomial authority Emile Brumpt Brumpt 1932 ref name list Cite book editor last Skerman editor first VBD editor2 last McGowan editor2 first V editor3 last Sneath editor3 first PHA publication date 1989 title Approved Lists of Bacterial Names edition amended publisher American Society for Microbiology publication place Washington, DC url http www.ncbi.nlm.nih.gov books NBK835 postscript Bot inserted parameter. Either remove it or change its value to . for the cite to end in a . , as necessary. inconsistent citations ref Rickettsia conorii is a unicellular , gram negative , Obligate intracellular parasite obligate intracellular bacterium of the genus Rickettsia that causes human disease called ... Bacteriology ,Volume 2, Part C contribution Genus I. Rickettsia da Rocha Lima 1916, 567 sup ... boutonneuse Rickettsia conorii , n. sp. chez la tique Rhipicephalus sanguineus journal C R Seances ... of evolution in Rickettsia conorii and R. prowazekii journal Science volume 293 issue 5537 pages ... of Rickettsia conorii based on multi locus sequence typing and an emended description of Rickettsia ... Spacer Sequences for Multispacer Typing of Rickettsia conorii Strains journal J. Clin. Microbiol ... diseases Category Rickettsiales medicine stub es Rickettsia conorii fr Rickettsia conorii pt Rickettsia conorii tr Rickettsia conorii ... more details
italic title Taxobox name Rickettsia felis regnum Bacteria phylum Proteobacteria classis Alpha Proteobacteria ordo Rickettsiales familia Rickettsiaceae genus Rickettsia species R. felis binomial Rickettsia felis binomial authority Bouyer et al. , 2001 emend. La Scola et al. , 2002 Rickettsia felis or cat flea typhus is a species of Rickettsia that causes flea borne spotted fever in cat s. ref name RaoultParola2007 cite book author1 Didier Raoult author2 Philippe Parola title Rickettsial diseases url http books.google.com books?id BSGuWFv qf0C&pg PA87 accessdate 23 May 2010 year 2007 publisher CRC Press isbn 9780849376115 pages 87 ref The bacteria can also infect humans and cause illness. Fleas are the vector carriers of the bacteria and it has been found in cat flea populations of North and South America, Southern Europe, Thailand and Australia. The host is usually infected by flea feces coming into contact with scratched or broken skin. ref Abdu F. Azad and Charles B. Beard. Rickettsial Pathogens and their Arthropod Vectors. Vol. 4, No. 2, April June 1998. ref Australia Human cases of rickettsia felis were diagnosed in Australia in 2009, these were the first reported human infections in Australia. ref Molly Williams, Leonard Izzard, Stephen R Graves, John Stenos and Julian J Kelly. First probable Australian cases of human infection with Rickettsia felis cat flea typhus . MJA 2011 194 1 41 43.http www.mja.com.au public issues 194 01 030111 wil10168 fm.html ref The infected individuals were family members who had been exposed to flea bites from infested kittens. In this cluster an otherwise healthy nine year old girl was admitted to hospital with fever and a rash. This later worsened three days later when her lungs filled with fluid and she was admitted to intensive care. ref The Age. January 6, 2011. Julia Medew. theage.com.au http www.theage.com.au national deadly catflea disease hits australia 20110105 19g8p.html ref References reflist Gram negative proteobacterial ... more details
italic title Taxobox color lightgrey name Rickettsia rickettsii image Rickettsia rickettsii.jpg domain ... Rickettsiaceae genus Rickettsia species R. rickettsii binomial Rickettsia rickettsii binomial authority Brumpt, 1922 Rickettsia rickettsii abbreviated as R. rickettsii is a unicellular, gram negative ... fever group SFG of Rickettsia and is most commonly known as the causative agent of Rocky Mountain spotted ... are considered to be accidental hosts in the rickettsia tick life cycle and are not required to maintain ... Rickettsiarickettsia, in honor of Howard Ricketts. S. Burt Wolbach is credited for the first detailed ... rickettsia as appropriate. He proposed the name Dermacentroxenus rickettsi . Emile Brumpt felt ... Rickettsia and in 1922 proposed the name Rickettsia rickettsii . Pathogen life cycle The life cycle of Rickettsia rickettsii is considered to be a complex one. Survival is dependent on both an invertebrate ... disease. Rickettsia rickettsii mostly affects canines and humans. Transmission in arthropod vectors ... Rhipicephalus sanguineus can acquire Rickettsia rickettsii in a number of different ways. First, an uninfected ... Mountain wood tick serve as long term reservoirs for Rickettsia rickettsii , in which the organism ... transmission . Transmission in mammals An uninfected mammal can become infected with Rickettsia ... through the bite of an infected tick. Humans acquire Rickettsia rickettsii infection from infected ... by infected vector feces. All these modes of transmission ensures the survival of Rickettsia in nature .... In vivo versus in vitro studies In vivo studies reveal that Rickettsia rickettsii invade endothelial ... 783 Rickettsia rickettsii genomes and related information at http patricbrc.org PATRIC , a Bioinformatics ... chel Classification.htm Rickettsia rickettsii The Cause of Rocky Mountain Spotted Fever http www.textbookofbacteriology.net ... Spotted Fever http mic.sgmjournals.org cgi reprint 140 11 2941.pdf Differential activity of Rickettsia ... Category Zoonoses Category Gram negative bacteria Gram negative bacterial diseases es Rickettsia ... more details
Taxobox color lightgrey name Rickettsia akari domain Bacteria phylum Proteobacteria classis Alphaproteobacteria ordo Rickettsiales familia Rickettsiaceae genus Rickettsia species R. acari binomial Rickettsia acari italictitle Rickettsia akari is a species of Rickettsia which causes rickettsialpox . ref DorlandsDict seven 000093181 rickettsialpox ref ref name urlRickettsia, Ehrlichia, Coxiella and Bartonella cite web url http pathmicro.med.sc.edu mayer ricketsia.htm title Rickettsia, Ehrlichia, Coxiella and Bartonella format work accessdate ref After a 1946 outbreak of a rickettsial type disease at an apartment complex in Kew Gardens, Queens , an investigation was performed to identify the source of the infections. The incinerators in the buildings were not operated on a daily basis, leading to a buildup in food waste and attracting mice that were rampant throughout the building. The Mus musculus mice were found to be carrying mite s, identified as the house mouse mite, Allodermanyssus sanguineus . Self trained entomologist Charles Pomerantz asked permission to search the site and found the mites at various sites throughout the building, with blood engorged mites found near chutes leading to the incinerator. The mites were collected and brought to a laboratory of the United States Public Health Service , which found in the mites an organism that had also been isolated from the mice, and from the blood of individuals infected with the disease. ref name AJPH Greenberg, Morris Pellitteri, Ottavio J. and Jellison, William L. http www.ajph.org cgi reprint 37 7 860.pdf Rickettsialpox A Newly Recognized Rickettsial Disease , American Journal of Public Health , July 1947. Accessed July 25, 2009. ref The organism was given its name by physician Robert Huebner , one of the scientists who had tracked down the source of the original 1946 epidemic the akari portion of the bacteria s name represents the Greek language Greek word for mite . ref name NIHBio Beeman, Edward A. http history.nih.gov ... more details
italic title Taxobox color lightgrey name Rickettsia prowazekii Commented out because image was deleted image Rickettsia prowazekii.jpg regnum Bacterium Bacteria phylum Proteobacteria classis Alphaproteobacteria ordo Rickettsiales familia Rickettsiaceae genus Rickettsia species R. prowazekii binomial Rickettsia prowazekii binomial authority da Rocha Lima, 1916 Rickettsia prowazekii is a species of gram negative , Alpha Proteobacteria, Obligate intracellular parasite obligate intracellular parasitic , Aerobic organism aerobic bacteria that is the etiologic agent of epidemic typhus , transmitted in the feces of lice. In North America, the main reservoir for R. prowazekii is the flying squirrel . R. prowazekii is often surrounded by a protein Capsule microbiology microcapsular layer and Mucus slime layer the natural life cycle of the bacterium generally involves a vertebrate and an invertebrate host, usually an arthropod , typically the human body louse . A form of R.. prowazekii that exists in the feces of arthropods remains stably infective for months. R. prowazekii also appears to be the closest free living relative of mitochondria , based on genome sequencing. History Discovery Henrique da Rocha Lima , a Brazilian doctor, discovered this bacterium in 1916. He named it after his colleague Stanislaus von Prowazek , who had died from typhus in 1915. Both Prowazek and Rocha Lima had been infected with typhus while studying its causative agent in a prison hospital in Hamburg , Germany ... intracellular parasite Rickettsia prowazekii, the causative agent of the disease typhus. These bacteria ... title The genome sequence of Rickettsia prowazekii and the origin of mitochondria ref Treatment ...?cType taxon&cId 782 title Rickettsia prowazekii Taxon Overview publisher Virginia Bioinformatics Institute ... diseases Reference es Rickettsia prowazecki fa fr Rickettsia prowazeki it Rickettsia prowazekii pl Rickettsia prowazekii ... more details
Infobox rfam Name Rickettsia rpsL leader image Rickettsia rpsL leader.png width caption Conserved secondary structure of Rickettsia rpsL leader showing the fraction of canonical base pairs Symbol rpsL ricks Rfam RF01774 RNA type Gene cis reg Tax domain Rickettsia DISPLAYTITLE Rickettsia rpsL leader The Rickettsia rpsL leader is a putative attenuator element identified by bioinformatics within bacteria of the proteobacterial Rickettsia genus. ref name Nav10 cite journal last Naville first M coauthors Gautheret, D title Premature terminator analysis sheds light on a hidden world of bacterial transcriptional attenuation. journal Genome biology year 2010 volume 11 issue 9 pages R97 pmid 20920266 accessdate 21 July 2011 doi 10.1186 gb 2010 11 9 r97 pmc 2965389 ref It is located upstream of the operon encoding ribosomal protein s S12 and S7 rpsL and rpsG genes respectively , and presents a intrinsic termination Rho independent terminator at the 3 end. This RNA is presumed to operate as a non coding ribosomal protein leader potentially interacting with the S12 or S7 proteins, encoded by the operon. The motif might be related to other rpsL leaders, such as that from Pseudomonas rpsL leader Pseudomonas . ref name Nav10 References reflist 1 External links Rfam id RF01774 name Rickettsia rpsL leader Category Cis regulatory RNA elements ... more details
Infobox Disease Name PAGENAME Image Caption DiseasesDB ICD10 ICD10 A 77 8 a 75 ICD9 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID Rickettsia aeschlimannii infection is a condition characterized by a rash of maculopapular maculopapules . ref name Bolognia cite book author Rapini, Ronald P. Bolognia, Jean L. Jorizzo, Joseph L. title Dermatology 2 Volume Set publisher Mosby location St. Louis year 2007 pages 1130 isbn 1 4160 2999 0 oclc doi accessdate ref See also Tick borne lymphadenopathy American tick bite fever List of cutaneous conditions References reflist Dermatology stub Gram negative proteobacterial diseases Category Bacterium related cutaneous conditions Category Rickettsioses ... more details
refimprove type bacteria auto yes date April 2011 Taxobox color lightgrey name Rickettsiaceae regnum Bacterium Bacteria phylum Proteobacteria classis Alpha Proteobacteria ordo Rickettsiales familia Rickettsiaceae familia authority Pinkerton, 1936 subdivision ranks Genera subdivision Rickettsia br Orientia br Wolbachia The Rickettsiaceae are a Family biology family of bacterium bacteria , including most notably the genus Rickettsia . Most human pathogens are in genus Rickettsia. They spend part of their life cycle in the bodies of arthropods such as ticks or lice , and are then transmitted to humans or other mammals by the bite of the arthropod. It is a Gram negative bacteria , very sensitive to environmental exposure, and thus is an obligate intracellular infection. Rickettsia rickettsii is considered the prototypical infectious organism in the group. Similar arthropod borne Rickettsial infections exist in other areas of the world. Rickettsialesphylogeny References Reflist Category Rickettsiales Proteobacteria stub de Rickettsiaceae es Rickettsiaceae fr Rickettsiaceae pt Rickettsiaceae ru uk Rickettsiaceae ... more details
Infobox Disease Name PAGENAME Image Caption DiseasesDB ICD10 ICD10 A 77 8 a 75 ICD9 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID American tick bite fever also known as Rickettsia parkeri infection is a condition that may be characterized by a rash of maculopapules. ref name Bolognia cite book author Rapini, Ronald P. Bolognia, Jean L. Jorizzo, Joseph L. title Dermatology 2 Volume Set publisher Mosby location St. Louis year 2007 pages 1130 isbn 1 4160 2999 0 oclc doi accessdate ref See also Rickettsia aeschlimannii infection Rickettsia aeschlimannii infection Flea borne spotted fever List of cutaneous conditions References reflist Dermatology stub Gram negative proteobacterial diseases Category Bacterium related cutaneous conditions Category Rickettsioses ... more details
Cleanup date July 2009 The Weil Felix test is an agglutination test for the diagnosis of rickettsial infections . It was first described in 1916. By virtue of its long history and of its simplicity, it has been one of the most widely employed tests for rickettsia on a global scale, despite being superseded in many settings by more sensitive and specific diagnostic tests. History and Basis for Test The basis of the test is the presence of antigenic cross reactivity between Rickettsia spp. and certain serotypes of non motile Proteus spp., a phenomenon first published by Edmund Weil and Arthur Felix in 1916. ref Cruikshank, R. The Weil Felix reaction in typhus fever. 1927. J Hyg Lond 27 1 64 69. ref The serum of patients diagnosed with epidemic typhus was found to agglutinate in the presence of bacteria now known as Proteus vulgaris . Ensuing work elucidated that it was in fact the somatic O antigen that cross reacted with anti rickettsial antibodies, and furthermore, that different Proteus O antigens would cross react with different species of Rickettsia . Typhus group rickettsiae Rickettsia prowazekii , Rickettsia typhi R. typhi react with P. vulgaris OX19, and scrub typhus Orientia tsutsugamushi reacts with P. mirabilis OXK. The spotted fever group rickettsiae Rickettsia rickettsii R. rickettsii , Rickettsia africae R. africae , Rickettsia japonica R. japonica , etc. react with P. vulgaris OX2 and OX19, to varying degrees, depending on the species. ref Walker, DH and DH Bouyer. Rickettsia and Orientia . In Manual of Clinical Microbiology, 9th Edition. 2007. ASM Press Washington, DC. p. 1042 ref The Weil Felix test suffers from poor sensitivity and specificity , with a recent study showing an overall sensitivity as low as 33 and specificity of 46 . ref Kularatne, SAM and IB Gawarammana. Validity of the Weil Felix test in the diagnosis of acute rickettsial infections in Sri Lanka. 2009. T Roy Soc Trop Med Hyg 103 423 424. ref Other studies have had similar findings. r ... more details
Tick borne lymphadenopathy is a condition characterized by lymphadenopathy and a rash . ref name Bolognia cite book author Rapini, Ronald P. Bolognia, Jean L. Jorizzo, Joseph L. title Dermatology 2 Volume Set publisher Mosby location St. Louis year 2007 pages 1130 isbn 1 4160 2999 0 oclc doi accessdate ref See also Epidemic typhus Brill Zinsser disease Rickettsia aeschlimannii infection List of cutaneous conditions References reflist Dermatology stub Category Bacterium related cutaneous conditions ... more details
Taxobox color lightgrey name Rickettsias image Rickettsia rickettsii.jpg image width 250px image caption Rickettsia rickettsii regnum Bacterium Bacteria phylum Proteobacteria classis Alphaproteobacteria ordo Rickettsiales ordo authority Gieszczkiewicz, 1939 subdivision ranks Families subdivision Rickettsiaceae br Anaplasmataceae ref name Anaplasmataceae cite book last Garrity first George title Bergey s Manual of Systematic Bacteriology publisher Springer year 2005 isbn 0 387 24145 0 ref Holosporaceae The Rickettsiales , also called rickettsias, are an order of small proteobacteria . Most of those described survive only as endosymbiont s of other cells. Some are notable pathogens, including Rickettsia , which causes a variety of diseases in humans. On the other end of the scale, gene tic studies support the endosymbiotic theory according to which mitochondrion mitochondria and related organelle s developed from members of this group. Some have also speculated that virus es might have developed from them, or from organisms like them. The Rickettsiales are among the most mysterious groups of Proteobacteria, owing largely to difficulties in cultivating them. Originally the group included all obligate endosymbiont bacteria. However, a number of species have been removed, such as Coxiella burnetii , the cause of Q fever . Environmental samples have found a variety of genes that originate from this group, pointing to a number of free living plankton ic species. These include SAR11, later cultivated as Pelagibacter ubique , one of the most common bacterium bacteria in the world. As of 2005, the exact composition and classification is far from settled. Rickettsialesphylogeny References references div class references small div Category Proteobacteria Category Rickettsiales Rickettsiales Proteobacteria stub cs Rickettsiales de Rickettsiales es Rickettsiales fr Rickettsiales ja pt Rickettsiales uk Rickettsiales zh ... more details
Infobox Disease Name Brill Zinsser disease Image Caption DiseasesDB 32208 ICD10 ICD10 A 75 1 a 75 ICD9 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID Brill Zinsser disease is a delayed relapse of epidemic typhus , caused by Rickettsia prowazekii . After a patient contracts epidemic typhus from the bite of an infected louse Pediculus humanus , the rickettsia can remain latent and reactivate months or years later, with symptoms similar to or even identical to the original attack of typhus, including a maculopapular rash . ref name Bolognia cite book author Rapini, Ronald P. Bolognia, Jean L. Jorizzo, Joseph L. title Dermatology 2 Volume Set publisher Mosby location St. Louis year 2007 pages 1130 isbn 1 4160 2999 0 oclc doi accessdate ref This reactivation event can be transmitted by louse bites, and form the focus for a new epidemic of typhus. See also Tick borne lymphadenopathy List of cutaneous conditions References reflist Gram negative proteobacterial diseases Category Bacterium related cutaneous conditions Category Rickettsioses Dermatology stub hu Brill Zinsser betegs g nl Ziekte van Brill Zinsser ru ... more details
Infobox Disease Name Flinders Island spotted fever Image Caption DiseasesDB ICD10 ICD10 A 77 8 a 75 ICD9 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID Flinders Island spotted fever is a condition characterized by a rash in approximately 85 of cases. ref name Bolognia cite book author Rapini, Ronald P. Bolognia, Jean L. Jorizzo, Joseph L. title Dermatology 2 Volume Set publisher Mosby location St. Louis year 2007 pages 1130 isbn 1 4160 2999 0 oclc doi accessdate ref It is associated with Rickettsia honei . ref name pmid17553271 cite journal author Unsworth NB, Stenos J, Graves SR, et al. title Flinders Island spotted fever rickettsioses caused by marmionii strain of Rickettsia honei, Eastern Australia journal Emerging Infect. Dis. volume 13 issue 4 pages 566 73 year 2007 month April pmid 17553271 pmc 2725950 doi 10.3201 eid1304.060087 url ref See also Japanese spotted fever North Asian tick typhus List of cutaneous conditions Flinders Island References reflist Gram negative proteobacterial diseases Category Bacterium related cutaneous conditions Category Rickettsioses Dermatology stub ... more details
Exogenous bacteria are bacteria introduced to closed biological systems from the external world. They exist in water, earth, and the air. Examples are cholera , Legionella , salmonella , rickettsia , mycobacterium , and bacillus anthracis. Endogenous bacteria are part of our normal internal flora . Sources div class references small Lowy, Microbiology and Infectious Diseases Lecture I Bacterial Classification, Structure and Function, Part I August 31, 2004, Transcribed by Anjail Shar. http healthsciences.columbia.edu dept ps 2007 mid mid01.pdf references div Category Microbial growth and nutrition Category Bacteriology Category Microbiology bacteria stub ca Bacteri exogen ... more details
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