OrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesInformation ScienceHealth Care
Rickettsia prowazekiiRickettsia rickettsiiRickettsiaRickettsia typhiRickettsia InfectionsRickettsia felisBacteriaTyphus, Epidemic Louse-BorneRocky Mountain Spotted FeverBoutonneuse FeverOrientia tsutsugamushiTyphus, Endemic Flea-BorneTicksSiphonapteraDermacentorGram-Negative BacteriaIxodidaeGram-Positive BacteriaTick-Borne DiseasesDNA, BacterialPhylogenyRNA, Ribosomal, 16SCoxiellaMolecular Sequence DataRickettsiaceaeBacteria, AnaerobicBacterial ProteinsRickettsieaeRickettsiaceae InfectionsSequence Analysis, DNADNA, RibosomalArachnid VectorsRickettsial VaccinesRhipicephalus sanguineusGenes, BacterialArthropod VectorsBacteria, AerobicRickettsia akariAntibodies, BacterialPhthirapteraEscherichia coli
RickettsiiVirusesTicksPathogensParasitesMycoplasmaBorreliaSpotted feverFungiMicroorganismsSpeciesBartonellaPathogenicChlamydiaIntracellular bacteriumCoxiellaAnaplasmaRMSFGram-negativeProtozoaTyphusClosely relatedLymeInfectionsAnaerobic BacteriaMicrobiologySpread to humansOrganismInfectionSalmonellaFacultativeDiseasesMicrobialVarious bacteriaOrientiaUnlikeAlmost 100BloodstreamReservoirsHumansLegionellaCarriesReplicate
Rickettsii6
Viruses9
  • unlike other bacteria, but like viruses, they require a living host (a living cell) to survive. (factmonster.com)
  • Although our current problems are with COVID-19, there have been other viruses and bacteria such as tuberculosis and the Yersinia Plague (Black Death) which have also caused global pandemics. (aao.org)
  • Rickettsia are small microscopic organisms that are different from both bacteria and viruses. (petplace.com)
  • These include diseases caused by viruses, bacteria, and parasites. (cdc.gov)
  • In cats, especially adult animals, viruses, protozoa, and fungi are more frequent causes of meningitis and encephalitis than are bacteria. (merckvetmanual.com)
  • Exploring the diversity of tick-borne pathogens: the case of bacteria ( Anaplasma , Rickettsia , Coxiella and Borrelia ) protozoa ( Babesia and Theileria ) and viruses ( Orthonairovirus , tick-borne encephalitis virus and louping ill virus) in the European continent. (cabi.org)
  • Infections can be caused by a wide range of pathogens , most prominently bacteria and viruses . (wikipedia.org)
  • a) Vaccine: A suspension of live (usually attenuated) or inactivated microorganisms (e.g., bacteria, viruses, or rickettsiae) or fractions thereof administered to induce immunity and prevent infectious disease or its sequelae. (cdc.gov)
  • Blood and saliva can transport viruses and pathogenic bacteria which could cause anything from the common cold to other more serious diseases such as labial herpes, hepatitis B and C, pneumonia, tuberculosis and, more rarely, acquired immunodeficiency syndrome (AIDS). (bvsalud.org)
Ticks11
  • Rocky Mountain spotted fever (RMSF) is a disease caused by a type of bacteria carried by ticks. (medlineplus.gov)
  • Only about 1 in 1,000 ticks carry the bacteria. (medlineplus.gov)
  • Bacteria can also infect people who crush ticks they have removed from pets with their bare fingers. (medlineplus.gov)
  • rickettsia rĭkĕtˈsēə , any of an order (Rickettsiales) of very small microorganisms, many disease-causing, that live in vertebrates and are transmitted by bloodsucking parasitic arthropods such as fleas , lice (see louse ), and ticks. (factmonster.com)
  • The relationships between ticks and spotted fever group rickettsiae are probably very ancient, so it's impossible to say at this point to say where Rickettsia parkeri first appeared. (cdc.gov)
  • Rocky Mountain spotted fever (RMSF) is transmitted by ticks infected by the Rickettsia ricketsii bacteria. (pestworld.org)
  • In addition, tickborne rickettsia and protozoan parasites have also been identified in ticks associated with T. rugosa (55) . (researchgate.net)
  • Cervids, which are the primary hosts of deer keds, are not natural reservoirs of B. burgdorferi, and it has been suggested that deer keds may acquire bacterial pathogens by co-feeding near ticks that are infected with the bacteria. (usda.gov)
  • Enhanced Detection and Characterization of Spotted Fever Group Rickettsia Species in Dogs and Ticks with Focus on a Novel Rickettsia Species Infecting Clinically Ill Dogs in the U.S. (akcchf.org)
  • METHODS: Ticks submitted by study participants from April-September 2011 and 2012 were identified to species and life stage, and preliminarily screened for the genus Rickettsia by nested PCR targeting the 17-kDa protein gene. (cdc.gov)
  • Nucleotide sequence analysis of Rickettsia-specific 23S-5S IGS, ompA and gltA gene fragments indicated that ticks, principally A. americanum, contained novel species of Rickettsia. (cdc.gov)
Pathogens5
  • Non‑predatory inter-actions' means that these bacteria do not simply serve the amoebae as food but have been found either as intracellular commensals, or as mu-tualists, or as pathogens. (asmblog.org)
  • The ancestral group includes the tick-borne agents Rickettsia bellii and R. canadensis but does not contain pathogens that cause human disease. (health.mil)
  • 7 Understanding of the epidemiology of rickettsial diseases continues to evolve as new information accumulates about the expanding geographic distribution of the causative pathogens, 8 the emergence of antibiotic-resistant strains,9 and the discovery of new species in the genera Rickettsia and Orientia . (health.mil)
  • And she gained a new appreciation for the myriad other types of intracellular bacteria, a diverse group that includes many medically significant pathogens such as Salmonella , Listeria, and Chlamydia , as well as the causative agents of tuberculosis and leprosy. (the-scientist.com)
  • Examples of these pathogens include Chlamydiae, Chlamydophila species, and rickettsiae. (msdmanuals.com)
Parasites1
  • They also use this genetic sequence to find a large number of similar sequences used by other bacteria including other reproductive parasites. (wikipedia.org)
Mycoplasma6
Borrelia2
Spotted fever7
Fungi1
  • The microbial flora is mostly bacteria and fungi and includes normal resident flora, which is present consistently and which promptly reestablishes itself if disturbed, and transient flora, which may colonize the host for hours to weeks but does not permanently establish itself. (msdmanuals.com)
Microorganisms1
  • Bacteria are microorganisms that have circular double-stranded DNA and (except for mycoplasmas) cell walls. (msdmanuals.com)
Species8
  • 2021) list in their review of The Ecology and Evo-lution of Amoeba-Bacterium Interactions a whopping 35 bacterial species from various phyla that are known for non‑predatory in-ter-actions with one or more Acanth-amoe-ba species. (asmblog.org)
  • They are caused by bacterial species of the genus Rickettsia and the closely related, but genetically distinct, genus Orientia . (health.mil)
  • Species classified within the genus Rickettsia are generally divided into 4 groups (i.e., clades). (health.mil)
  • Scrub typhus is a potentially fatal acute febrile disease transmitted by larval mites (i.e., "chiggers"), primarily of species of the genus Leptotrombidium that are infected by the obligate intracellular bacteria O. tsutsugamushi . (health.mil)
  • All samples were found positive by a specific ompAPCR assay, confirming the close association of this Rickettsia species with X. ramesis in all its life stages. (datadryad.org)
  • Rickettsia were further identified to species by PCR amplification of 23S-5S intergenic spacer (IGS) fragments combined with reverse line blot hybridization with species-specific probes and through cloning and nucleotide sequence analysis of 23S-5S amplicons. (cdc.gov)
  • Candidatus Rickettsia amblyommii", identified in all four tick species, accounted for 90.2% (416/461) of the 23S-5S-positive samples and 52.9% (416/787) of all samples tested. (cdc.gov)
  • Other Rickettsiales bacteria, including novel species of Rickettsia, were less frequently detected in A. americanum but are relevant to public health nevertheless. (cdc.gov)
Bartonella2
Pathogenic1
  • Caulobacter in contrast, as an alpha-proteobacteria, is closely related to human pathogenic bacteria, such as Brucella and Rickettsia . (csun.edu)
Chlamydia1
  • By contrast, obligate intracellular bacteria such as Chlamydia trachomatis and Mycobacterium leprae do, and this trait makes them a challenge to culture and study in the lab. (the-scientist.com)
Intracellular bacterium2
  • Rather, it was produced by a tiny intracellular bacterium known as Legionella pneumophila , the pathogen behind a serious lung infection called Legionnaire's disease. (the-scientist.com)
  • Q fever (see the image below) is a zoonosis caused by Coxiella burnetii, an obligate gram-negative intracellular bacterium. (medscape.com)
Coxiella1
Anaplasma2
  • However, unlike rickettsiae, these bacteria inhabit white blood cells White blood cells ( Ehrlichia in monocytes and Anaplasma in granulocytes). (merckmanuals.com)
  • Because Ehrlichia and Anaplasma bacteria infect white blood cells, which circulate in the bloodstream, these bacteria may be transmitted through blood transfusions or organ transplantation. (merckmanuals.com)
RMSF1
Gram-negative4
Protozoa1
  • Infections caused by protozoa and certain bacteria can be treated with appropriate antibiotics, and fungal infections can be treated with specific antifungal drugs. (merckvetmanual.com)
Typhus5
  • Rickettsias are named after their discoverer, the American pathologist Harold Taylor Ricketts, who died of typhus in Mexico after confirming the infectious agent of that rickettsial disease. (factmonster.com)
  • Scrub typhus, caused by the bacteria, Orientia tsutsugamushi , is transmitted through the bite of an infective mite, and spreads through the lymphatic fluid and blood, causing fever, rash, and laboratory abnormalities such as elevated levels of C-reactive protein and liver enzymes. (ox.ac.uk)
  • Scrub typhus has been known for years and the bacteria that causes it was first identified in Japan in 1930. (ox.ac.uk)
  • The hospital was taking part in a study of infections by rickettsia bacteria, similar to the scrub typhus-causing Orientia . (ox.ac.uk)
  • Researchers at the University of Athens in 2006 analyzed teeth recovered from a mass grave and confirmed the presence of bacterium responsible for typhus. (aao.org)
Closely related1
  • The molecular identification of the positive samples showed all sequences to be closely related to the 'Rickettsia felis-like' organisms (99-100% similarities in the six loci). (datadryad.org)
Lyme2
  • Lyme arthritis occurs when the spirochete, the bacteria that causes the disease, invades the joints and causes inflammation to the tissue that lines the joints," he said. (sciencedaily.com)
  • Dr. Cruz said that although rash occurs in the majority of patients exposed to the Lyme bacteria, in many patients who develop Lyme arthritis, the rash either never develops or goes unnoticed. (sciencedaily.com)
Infections2
  • To reduce the development of drug-resistant bacteria and maintain the effectiveness of Doxycycline and other antibacterial drugs, Doxycycline should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria. (nih.gov)
  • Overview of Rickettsial Infections Rickettsial infections and related infections (such as anaplasmosis, ehrlichiosis, and Q fever) are caused by an unusual type of bacteria that can live only inside the cells of another organism. (merckmanuals.com)
Anaerobic Bacteria1
  • Anaerobic bacteria : selected topics / edited by Dwight W. Lambe, Robert J. Genco and K. J. Mayberry-Carson. (who.int)
Microbiology1
Spread to humans1
Organism1
  • The dimorphic bacterium Caulobacter crescentus is a model organism for studying the bacterial cell cycle. (csun.edu)
Infection1
  • Rickettsia parkeri was first identified by scientists more than 70 years ago, but it was not until 2004 that it was shown to cause a distinct infection in humans. (cdc.gov)
Salmonella1
  • Salmonella is a bacterium that can live in the intestinal tract of many animals. (pestworld.org)
Facultative1
  • So-called facultative intracellular bacteria such as Listeria monocytogenes and Legionella pneumophila do not need to be inside a host cell to reproduce. (the-scientist.com)
Diseases1
  • We now know that in this hemisphere, as in all other parts of the world, several different types of tick-transmitted rickettsiae can cause several different diseases in the same area. (cdc.gov)
Microbial1
  • Microbial survival in the environment : bacteria and rickettsiae important in human and animal health / E. Mitscherlich, E. H. Marth. (who.int)
Various bacteria2
  • Used for community acquired pneumonia caused by various bacteria including multi-drug resistant pneumococci. (mindmeister.com)
  • Fleas are acknowledged vectors and reservoirs of various bacteria that present a wide range of pathogenicity. (datadryad.org)
Orientia1
  • One, in the Middle East, was caused by a previously unrecorded bacteria related to tsutsugamushi and named Orientia Chuto . (ox.ac.uk)
Unlike1
  • Unlike other rickettsiae, which target vascular endothelial cells, R akari targets host CD68 macrophages. (medscape.com)
Almost 1001
  • 2009 have a dedicated energizing module, but in 459 cases distributed among almost 100 gram-positive bacteria, different and unrelated substrate capture proteins share the same energy-coupling module. (tcdb.org)
Bloodstream1
  • However, the tick needs to be attached for 5 to 20 hours before the bacterium enters the bloodstream, so quick removal is important. (akc.org)
Reservoirs1
  • Previous research has shown that Australian native possums are reservoirs of M. ulcerans and that they shed the bacteria in their fecal material (excreta). (bvsalud.org)
Humans1
  • However, like many bacteria and plants, its metabolism does depend upon the type II fatty-acid synthesis (FAS) pathway for lipogenesis, whereas the predominant form of fatty-acid biosynthesis in humans is via the type I pathway. (rcsb.org)
Legionella1
  • The list may not even be complete, as I miss, for example, Legionella pneumophila (class Gamma-pro-teo-bacteria) known to survive and replicate within both Acanthamoeba castellanii and A. poly-phaga , and ' Candidatus Nucleicultrix amoebiphila' (class Alphaproteo-bacteria) that infects A. cas-tellanii and makes itself at home in its nucleus (see here in STC). (asmblog.org)
Carries2
  • Liposcelis bostrychophila is almost entirely of a biotype which is parthenogenetic and carries Rickettsia felis. (wikipedia.org)
  • The reason for this is that the tick that carries and transmits this bacterium is distributed in this same region. (cdc.gov)
Replicate1
  • Most bacteria live extracellularly, but some preferentially reside and replicate intracellularly. (msdmanuals.com)