Results 101 to 110 of about 7,443 (219)

Zoonotic surveillance for rickettsiae in domestic animals in Kenya

, 2015
Rickettsiae are obligate intracellular bacteria that cause zoonotic and human diseases. Arthropod vectors, such as fleas, mites, ticks, and lice, transmit rickettsiae to vertebrates during blood meals. In humans, the disease can be life threatening. This
Magiri, C.G., Njagi, O.N., Mutai, B.K., Richards, A.L., Wainaina, J.M., Jiang, J., Ithondeka, P.M., Ng'ang'a, J.K., Waitumbi, J.N.   +8 more
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Tick-borne rickettsiae in Guinea and Liberia

, 2012
While the high seroprevalence for the rickettsiae that cause spotted fevers and the multiple pathogenic rickettsiae is known, the data on the distribution of rickettsial diseases in Africa are often incomplete.
Zolia, Y., Diatta, G., Kohar, H., Balde, M. C., Mediannikov, Oleg, Trape, Jean-François, Raoult, Didier   +6 more
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Rapid and simple identification of Orientia tsutsugamushi from other group rickettsiae by duplex PCR assay using groEL gene

, 2005
In this study, two new duplex PCR methods based on the groEL gene were developed and investigated for the diagnosis of rickettsiae. The first duplex PCR assay amplified the 229-bp and the 366-bp DNAs of 6 strains including typhus group (TG) and spotted ...
Lee, Seung-Hyun, Kook, Yoon-Hoh, Lee, Jung-Hee, Hong, Sung-Jin, Kim, Tae-Yung, Park, Kyung-Hee, Jeong, Eun-Ju, Kim, Jung-Eun, Kim, Bum-Joon, Jang, Won-Jong, Park, Hyo-Soon, Park, Tae-Kyu   +11 more
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Rickettsia Species: Genetic Variability, Vectors, and Rickettsiosis—A Review

Pathogens
Rickettsiae are an interesting group of bacteria comprising a large number of obligate intracellular species. The circulation of these bacteria in the environment depends on the presence of vectors (blood-sucking invertebrates) and their hosts.
Anna Rymaszewska, Mariusz Piotrowski
doaj   +1 more source

Spotted Fever Group Rickettsiae in Inner Mongolia, China, 2015–2016

, 2018
We found Rickettsia raoultii infection in 6/261 brucellosis-negative patients with fever of unknown origin in brucellosis-endemic Inner Mongolia, China. We further identified Hyalomma asiaticum ticks associated with R. raoultii, H.
Hiromi Fujita, Yuko Shimamura, Gaowa, Minzhi Cao, Hiroki Kawabata, Fumihiko Kawamori, Chunlian Ding, Shuji Ando, Shengchun Guo, Hongru Su, Shuichi Masuda, Wulantuya, Masahiko Shimada, Xuhong Yin, Norio Ohashi, Kozue Sato   +15 more
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Exploring spotted-fever and typhus group rickettsiae seroprevalence and associated risk factors among rural inhabitants from Cauca department, Colombia

Ticks and Tick-Borne Diseases
Rickettsia species are vector-borne bacteria, some of which cause rickettsioses, an underrecognized cause of acute undifferentiated febrile illness. While several regions of Colombia are considered endemic for rickettsial infections, information from ...
Carlos Ramiro Silva-Ramos, Heidy-C. Martínez Díaz, Paola Betancourt-Ruiz, Juliana Gil-Mora, C․Alexander Barrero-Rubiano, María-Alejandra Villalba-Pérez, Karla Dzul-Rosado, Luz-Adriana Olaya-M, Eliana Bolaños, Efraín Benavides, Álvaro A. Faccini-Martínez, Marylin Hidalgo   +11 more
doaj   +1 more source

Rickettsiae of the spotted-fever group in ixodid ticks from Hungary: identification of a new genotype ('Candidatus Rickettsia kotlanii')

, 2006
Three common European 'anthrophilic' ticks, Ixodes ricinus, Haemaphysalis concinna and Dermacentor reticulatus, were collected in Hungary and tested, in assays based on nested PCR, for rickettsiae of the spotted-fever group. Low percentages of I. ricinus
Sréter, Tamás, Egyed, László, Széll, Z., Kovács, G., Márialigeti, Károly, Sréter-Lancz, Z.   +5 more
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THE INFLUENCE OF DIPHOSPHOPYRIDINE NUCLEOTIDE ON THE STABILITY OF TYPHUS RICKETTSIAE'

, 1953
A study of the factors influencing the stability of typhus rickettsiae in vitro, initiated several years ago (Bovarnick et al., 1950), has been ex-tended with the aim of ultimately achieving growth in vitro of these organisms. During these experiments it
Marianna R. Bovarnick, Gloria Pagan, Emma G. Allen   +2 more
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Emerging spotted fever group rickettsiae in ticks, northwestern China

, 2016
We report Rickettsia conorii subsp. indica, Candidatus R. barbariae and R. massiliae in Rhipicephalus turanicus from sheep around the Taklamakan desert, northwestern China.
Wang, Shi-Wei, Jiang, Su-Hua, Wang, Yuan-Zhi, Chen, Chuang-Fu, Guo, Li-Ping, Liu, Dan   +5 more
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Evidence for transovarial transmission of tick-borne rickettsiae circulating in Northern Mongolia

, 2018
Transstadial transmission of tick-borne rickettsiae has been well documented. Few studies, however, have evaluated the role of transovarial transmission of tick-borne rickettsiae, particularly in nature within the host-vector ecosystem.
Battsetseg Gonchigoo, Gregory C Gray, Michael E. von Fricken (4586215), Benjamin D. Anderson (511336), Gregory C. Gray (446990), Luke Caddell (5687588), Laura A Pulscher, Michael E von Fricken, Thomas C Moore, Thomas C. Moore (5687582), Benjamin D Anderson, Luke Caddell, Laura A. Pulscher (5687585), Battsetseg Gonchigoo (4805607)   +13 more
core   +1 more source