neorickettsia

Summary

Summary: Genus of gram-negative, intracytoplasmic bacteria that are found primarily in VACUOLES of MONOCYTES in the BLOOD and MACROPHAGES of lymphoid or other tissues of DOGS; HORSES, and humans. (From Int. J. Syst. Evol. Microbiol. (2001) 51:2145-2165)

Top Publications

  1. Park B, Kim M, Kim E, Kim M, Na D, Chae J. Identification of trematode cercariae carrying Neorickettsia risticii in freshwater stream snails. Ann N Y Acad Sci. 2003;990:239-47 pubmed
    We provide evidence of Neorickettsia (Ehrlichia) risticii Holland, the agent of Potomac horse fever, in trematode larval stages found in aquatic snails and insects collected from a stream in Korea, using nested polymerase chain reaction (..
  2. Tkach V, Schroeder J, Greiman S, Vaughan J. New genetic lineages, host associations and circulation pathways of Neorickettsia endosymbionts of digeneans. Acta Parasitol. 2012;57:285-92 pubmed publisher
    b>Neorickettsia is a genus of intracellular bacteria endosymbiotic in digeneans that may also invade cells of vertebrates and are known to cause diseases of wildlife and humans...
  3. Headley S, Scorpio D, Vidotto O, Dumler J. Neorickettsia helminthoeca and salmon poisoning disease: a review. Vet J. 2011;187:165-73 pubmed publisher
    b>Neorickettsia helminthoeca is an obligate intra-cytoplasmic bacterium that causes salmon poisoning disease (SPD), an acute, febrile, fatal disease of dogs...
  4. Hackett T, Jensen W, Lehman T, Hohenhaus A, Crawford P, Giger U, et al. Prevalence of DNA of Mycoplasma haemofelis, 'Candidatus Mycoplasma haemominutum,' Anaplasma phagocytophilum, and species of Bartonella, Neorickettsia, and Ehrlichia in cats used as blood donors in the United States. J Am Vet Med Assoc. 2006;229:700-5 pubmed
    ..identify the prevalence of DNA of Mycoplasma haemofelis; 'Candidatus Mycoplasma haemominutum'; Anaplasma phagocytophilum; and species of Bartonella, Neorickettsia, and Ehrlichia in blood of cats used as blood donors in the United States.
  5. Taillardat Bisch A, Raoult D, Drancourt M. RNA polymerase beta-subunit-based phylogeny of Ehrlichia spp., Anaplasma spp., Neorickettsia spp. and Wolbachia pipientis. Int J Syst Evol Microbiol. 2003;53:455-8 pubmed publisher
    ..of RNA polymerase, was used in a phylogenetic investigation of nine species from the genera Ehrlichia, Neorickettsia, Wolbachia and Anaplasma...
  6. Headley S, Vidotto O, Scorpio D, Dumler J, Mankowski J. Suspected cases of Neorickettsia-like organisms in Brazilian dogs. Ann N Y Acad Sci. 2004;1026:79-83 pubmed
    ..Intracytoplasmic organisms consistent with Neorickettsia helminthoeca were demonstrated by Giemsa stain in reticuloendothelial cells of the intestine, spleen, Peyer's ..
  7. Rikihisa Y, Zhang C, Kanter M, Cheng Z, Ohashi N, Fukuda T. Analysis of p51, groESL, and the major antigen P51 in various species of Neorickettsia, an obligatory intracellular bacterium that infects trematodes and mammals. J Clin Microbiol. 2004;42:3823-6 pubmed
    The p51 gene that encodes the major antigenic 51-kDa protein in Neorickettsia risticii was identified in strains of Neorickettsia sennetsu and the Stellantchasmus falcatus agent but not in Neorickettsia helminthoeca, suggesting that p51-..
  8. Dittrich S, Phuklia W, Turner G, Rattanavong S, Chansamouth V, Dumler S, et al. Neorickettsia sennetsu as a Neglected Cause of Fever in South-East Asia. PLoS Negl Trop Dis. 2015;9:e0003908 pubmed publisher
    b>Neorickettsia sennetsu infection is rarely recognized, with less than 100 globally reported patients over the last 50 years. The disease is thought to be contracted by eating raw fish, a staple of many South-East Asian cuisines...
  9. Dahmani M, Davoust B, Tahir D, Raoult D, Fenollar F, Mediannikov O. Molecular investigation and phylogeny of Anaplasmataceae species infecting domestic animals and ticks in Corsica, France. Parasit Vectors. 2017;10:302 pubmed publisher
    ..family Anaplasmataceae is a member of the order Rickettsiales; it includes the genera Anaplasma, Ehrlichia, Neorickettsia and Wolbachia...

More Information

Publications33

  1. Greiman S, Vaughan J, Elmahy R, Adisakwattana P, Van Ha N, Fayton T, et al. Real-time PCR detection and phylogenetic relationships of Neorickettsia spp. in digeneans from Egypt, Philippines, Thailand, Vietnam and the United States. Parasitol Int. 2017;66:1003-1007 pubmed publisher
    b>Neorickettsia (Rickettsiales, Anaplasmataceae) is a genus of obligate intracellular bacterial endosymbionts of digeneans (Platyhelminthes, Digenea)...
  2. Shaw S, Stämpfli H. Diagnosis and Treatment of Undifferentiated and Infectious Acute Diarrhea in the Adult Horse. Vet Clin North Am Equine Pract. 2018;34:39-53 pubmed publisher
    ..Common causes include salmonellosis, clostridiosis, Coronavirus, and infection with Neorickettsia risticii (Potomac horse fever)...
  3. McNulty S, Tort J, Rinaldi G, Fischer K, Rosa B, Smircich P, et al. Genomes of Fasciola hepatica from the Americas Reveal Colonization with Neorickettsia Endobacteria Related to the Agents of Potomac Horse and Human Sennetsu Fevers. PLoS Genet. 2017;13:e1006537 pubmed publisher
    ..Two contigs from the F. hepatica Oregon assembly were joined to complete the 859,205 bp genome of a novel Neorickettsia endobacterium (nFh) closely related to the etiological agents of human Sennetsu and Potomac horse fevers...
  4. Greiman S, Kent M, Betts J, Cochell D, Sigler T, Tkach V. Nanophyetus salmincola, vector of the salmon poisoning disease agent Neorickettsia helminthoeca, harbors a second pathogenic Neorickettsia species. Vet Parasitol. 2016;229:107-109 pubmed publisher
    The trematode Nanophyetus salmincola is known as the carrier of Neorickettsia helminthoeca, an obligate intracellular endosymbiotic bacterium that causes salmon poisoning disease (SPD), a fatal disease of dogs...
  5. Greiman S, Tkach M, Vaughan J, Tkach V. Laboratory maintenance of the bacterial endosymbiont, Neorickettsia sp., through the life cycle of a digenean, Plagiorchis elegans. Exp Parasitol. 2015;157:78-83 pubmed publisher
    ..These parasites can serve as hosts to obligate intracellular bacteria belonging to the genus Neorickettsia (Family: Anaplasmataceae)...
  6. Fischer K, Tkach V, Curtis K, Fischer P. Ultrastructure and localization of Neorickettsia in adult digenean trematodes provides novel insights into helminth-endobacteria interaction. Parasit Vectors. 2017;10:177 pubmed publisher
    b>Neorickettsia are a group of intracellular ? proteobacteria transmitted by digeneans (Platyhelminthes, Trematoda). These endobacteria can also infect vertebrate hosts of the helminths and cause serious diseases in animals and humans...
  7. Suh G, Ahn K, Ahn J, Kim H, Leutenegger C, Shin S. Serological and molecular prevalence of canine vector-borne diseases (CVBDs) in Korea. Parasit Vectors. 2017;10:146 pubmed publisher
    ..2%) dogs, respectively. DNA of Bartonella spp., Ehrlichia spp., Leishmania spp., Rickettsia spp. and Neorickettsia risticii was not identified...
  8. Hornok S, Szoke K, Estók P, Krawczyk A, Haarsma A, Kováts D, et al. Assessing bat droppings and predatory bird pellets for vector-borne bacteria: molecular evidence of bat-associated Neorickettsia sp. in Europe. Antonie Van Leeuwenhoek. 2018;111:1707-1717 pubmed publisher
    ..Faecal samples of the pond bat (Myotis dasycneme) were positive for a Neorickettsia sp. and for haemoplasmas of the haemofelis group...
  9. Xiong Q, Bekebrede H, Sharma P, Arroyo L, Baird J, Rikihisa Y. An Ecotype of Neorickettsia risticii Causing Potomac Horse Fever in Canada. Appl Environ Microbiol. 2016;82:6030-6 pubmed publisher
    b>Neorickettsia (formerly Ehrlichia) risticii is an obligatory intracellular bacterium of digenetic trematodes. When a horse accidentally ingests aquatic insects containing encysted trematodes infected with N...
  10. Lawrence S, Poulin R. Detection of the bacterial endosymbiont Neorickettsia in a New Zealand digenean. Parasitol Res. 2016;115:4275-4279 pubmed
    b>Neorickettsia are endosymbiotic bacteria that infect digeneans (Trematoda)...
  11. Rahi M, Gupte M, Bhargava A, Varghese G, Arora R. DHR-ICMR Guidelines for diagnosis & management of Rickettsial diseases in India. Indian J Med Res. 2015;141:417-22 pubmed publisher
    ..a variety of obligate intracellular, gram-negative bacteria from the genera Rickettsia, Orientia, Ehrlichia, Neorickettsia, Neoehrlichia, and Anaplasma, belonging to the Alphaproteobacteria, are considered some of the most covert ..
  12. Lin M, Bachman K, Cheng Z, Daugherty S, Nagaraj S, Sengamalay N, et al. Analysis of complete genome sequence and major surface antigens of Neorickettsia helminthoeca, causative agent of salmon poisoning disease. Microb Biotechnol. 2017;10:933-957 pubmed publisher
    b>Neorickettsia helminthoeca, a type species of the genus Neorickettsia, is an endosymbiont of digenetic trematodes of veterinary importance...
  13. Cubilla M, Santos L, de Moraes W, Cubas Z, Leutenegger C, Estrada M, et al. Microscopic and molecular identification of hemotropic mycoplasmas in South American coatis (Nasua nasua). Comp Immunol Microbiol Infect Dis. 2017;53:19-25 pubmed publisher
    ..Mycoplasma haemofelis, 'Candidatus Mycoplasma turicensis', 'Candidatus Mycoplasma haemominutum', Neorickettsia risticii, Rickettsia rickettsii and Leptospira spp., and a pan-hemoplasma conventional PCR assay...
  14. Bhengsri S, Baggett H, Edouard S, Dowell S, Dasch G, Fisk T, et al. Sennetsu Neorickettsiosis, Spotted Fever Group, and Typhus Group Rickettsioses in Three Provinces in Thailand. Am J Trop Med Hyg. 2016;95:43-9 pubmed publisher
    We estimated the seroprevalence and determined the frequency of acute infections with Neorickettsia sennetsu, spotted fever group rickettsiae, Rickettsia typhi, and Orientia tsutsugamushi among 2,225 febrile patients presenting to ..
  15. Durán M, Marqués F. Detection of Neorickettsia risticii, the agent of Potomac horse fever, in a Gypsy Vanner stallion from Manitoba. Can Vet J. 2016;57:293-5 pubmed
    ..Polymerase chain reaction analysis of the feces confirmed Neorickettsia risticii infection. This is the first reported case of PHF in Manitoba...
  16. Cicuttin G, De Salvo M, La Rosa I, Dohmen F. Neorickettsia risticii, Rickettsia sp. and Bartonella sp. in Tadarida brasiliensis bats from Buenos Aires, Argentina. Comp Immunol Microbiol Infect Dis. 2017;52:1-5 pubmed publisher
    ..The aim of the present study was to detect species of Anaplasma, Ehrlichia, Neorickettsia, Rickettsia, Borrelia and Bartonella in Brazilian free-tailed bats (Tadarida brasiliensis, Molossidae) from ..
  17. Bergmann M, Englert T, Stuetzer B, Hawley J, Lappin M, Hartmann K. Prevalence of selected rickettsial infections in cats in Southern Germany. Comp Immunol Microbiol Infect Dis. 2015;42:33-6 pubmed publisher
    Prevalence of Anaplasma, Ehrlichia, Neorickettsia, and Wolbachia DNA in blood of 479 cats collected in different veterinary clinics in Southern Germany was determined using a previously published conventional PCR using 16S-23S intergenic ..
  18. Greiman S, Rikihisa Y, Cain J, Vaughan J, Tkach V. Germs within Worms: Localization of Neorickettsia sp. within Life Cycle Stages of the Digenean Plagiorchis elegans. Appl Environ Microbiol. 2016;82:2356-2362 pubmed publisher
    b>Neorickettsia spp. are bacterial endosymbionts of parasitic flukes (Digenea) that also have the potential to infect and cause disease (e.g., Sennetsu fever) in the vertebrate hosts of the fluke...
  19. Vaughan J, Tkach V, Greiman S. Neorickettsial endosymbionts of the digenea: diversity, transmission and distribution. Adv Parasitol. 2012;79:253-97 pubmed publisher
    ..Some digenean species harbour bacterial endosymbionts known as Neorickettsia (Order Rickettsiales, Family Anaplasmataceae)...
  20. Sacchi A, Duarte J, André M, Machado R. Prevalence and molecular characterization of Anaplasmataceae agents in free-ranging Brazilian marsh deer (Blastocerus dichotomus). Comp Immunol Microbiol Infect Dis. 2012;35:325-34 pubmed publisher
    ..In the present work we investigate the presence of Ehrlichia, Anaplasma, and Neorickettsia species in blood samples from Brazilian marsh deer (Blastocerus dichotomus), using both molecular and ..
  21. Gai J, Marks S. Salmon poisoning disease in two Malayan sun bears. J Am Vet Med Assoc. 2008;232:586-8 pubmed publisher
    ..2 captive sun bears (Helarctos malayanus) were evaluated because of acute onset of vomiting, mucoid diarrhea, lethargy, and anorexia 1 week after eating live trout from a northern California reservoir...
  22. Headley S, Scorpio D, Barat N, Vidotto O, Dumler J. Neorickettsia helminthoeca in dog, Brazil. Emerg Infect Dis. 2006;12:1303-4 pubmed
  23. Ishak A, Radecki S, Lappin M. Prevalence of Mycoplasma haemofelis, 'Candidatus Mycoplasma haemominutum', Bartonella species, Ehrlichia species, and Anaplasma phagocytophilum DNA in the blood of cats with anemia. J Feline Med Surg. 2007;9:1-7 pubmed
    ..2%) and 13 of 87 healthy cats (14.9%); DNA of a Bartonella species was amplified from five of 89 cats with anemia (5.6%) and seven of 87 healthy cats (8.0%). There were no statistically significant differences detected between groups...
  24. Johns J, Strasser J, Zinkl J, Christopher M. Lymph node aspirate from a California wine-country dog. Vet Clin Pathol. 2006;35:243-6 pubmed
    ..The patient responded quickly to doxycycline therapy for the causative agent of SPD (Neorickettsia helminthoeca)...