Results 41 to 50 of about 2,500 (159)

Rickettsia felisand Changing Paradigms about Pathogenic Rickettsiae

Emerging Infectious Diseases, 2014
To the Editor: Mediannikov et al. recently reported several features common to the epidemiology of Rickettsia felis infection and malaria in Africa (1). Similar to the findings of several other recent studies in Africa (2,3), the authors diagnosed R. felis infection in febrile—and to a lesser extent in afebrile—persons by detecting R.
Marcelo B. Labruna, David Walker
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Rickettsia felis in Ctenocephalides felis from Guatemala and Costa Rica [PDF]

The American Society of Tropical Medicine and Hygiene, 2012
Rickettsia felis is an emerging human pathogen associated primarily with the cat flea Ctenocephalides felis. In this study, we investigated the presence of Rickettsia felis in C. felis from Guatemala and Costa Rica. Ctenocephalides felis were collected directly from dogs and cats, and analyzed by polymerase chain reaction for Rickettsia-specific ...
Troyo, Adriana, Alvarez, Danilo, Taylor, Lizeth, Abdalla, Gabriela, Calderon-Arguedas, Olger, Zambrano, Maria L., Dasch, Gregory A., Lindblade, Kim A., Hun, Laya, Eremeeva, Marina, Estevez, Alejandra   +10 more
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Rickettsia felis–associated Uneruptive Fever, Senegal

Emerging Infectious Diseases, 2010
During November 2008-July 2009, we investigated the origin of unknown fever in Senegalese patients with a negative malaria test result, focusing on potential rickettsial infection. Using molecular tools, we found evidence for Rickettsia felis-associated illness in the initial days of infection in febrile Senegalese patients without malaria.
Socolovschi, C., /Mediannikov, Oleg, /Sokhna, Cheikh, Tall, A., Diatta, G., Bassene, H., /Trape, Jean-Francois, Raoult, Didier   +7 more
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Seroprevalence of Rickettsia bellii and Rickettsia felis in dogs, São José dos Pinhais, State of Paraná, Brazil Soroprevalência de Rickettsia bellii e Rickettsia felis em cães, São José dos Pinhais, Paraná, Brasil

Revista Brasileira de Parasitologia Veterinária, 2010
Brazilian spotted fever (BSF) is a vector-borne zoonosis caused by Rickettsia rickettsii bacteria. Dogs can be host sentinels for this bacterium. The aim of the study was to determine the presence of antibodies against Rickettsia spp.
Fernanda Silva Fortes, Iara Silveira, Jonas Moraes-Filho, Ronaldo Viana Leite, José Edivaldo Bonacim, Alexander Welker Biondo, Marcelo Bahia Labruna, Marcelo Beltrão Molento   +7 more
doaj   +1 more source

Rickettsia felis, an Emerging Flea-Borne Rickettsiosis. [PDF]

Curr Trop Med Rep, 2016
Rickettsia felis is an emerging insect-borne rickettsial pathogen and the causative agent of flea-borne spotted fever. First described as a human pathogen from the USA in 1991, R. felis is now identified throughout the world and considered a common cause of fever in Africa.
Brown LD, Macaluso KR.
europepmc   +4 more sources

Rickettsia felisin Fleas, Western Australia

Emerging Infectious Diseases, 2006
This study is the first confirmation of Rickettsia felis in Australia. The organism was identified from 4 species of fleas obtained from dogs and cats in Western Australia, by using polymerase chain reaction amplification and DNA sequencing of the citrate synthase and outer membrane protein A genes.
Schloderer, Drew, Owen, Helen, Clark, Phillip, Stenos, John, Fenwick, Stanley G.   +4 more
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Human Infection withRickettsia felis,Kenya

Emerging Infectious Diseases, 2010
To determine the cause of acute febrile illnesses other than malaria in the North Eastern Province, Kenya, we investigated rickettsial infection among patients from Garissa Provincial Hospital for 23 months during 2006-2008. Nucleic acid preparations of serum from 6 (3.7%) of 163 patients were positive for rickettsial DNA as determined by a genus ...
Allen L. Richards, Ju Jiang, Sylvia Omulo, Ryan Dare, Khalif Abdirahman, Abdile Ali, Shanaaz K. Sharif, Daniel R. Feikin, Robert F. Breiman, M. Kariuki Njenga   +9 more
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First detection of Rickettsia felis in Ctenocephalides felis fleas from Italy [PDF]

Clinical Microbiology and Infection, 2009
Members of the genus Rickettsia are commonly associated with haematophagous arthropods such as ticks, fleas or lice. Rickettsia felis is a bacterium belonging to the spotted fever group of the genus Rickettsia. It was first detected by Adams et al. in 1990 [1] in the midgut cells of a cat flea (Ctenocephalides felis), and was later described as a new ...
Maioli, G., Horta, M.C., Ogrzewalska, M., Capelli, G., Souza, S.O., Richtzenhain, L.J., Labruna, M.B.   +6 more
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Epidemiological and molecular profile of rickettsiosis in Peruvian border locations

Revista Peruana de Medicina Experimental y Salud Pública, 2017
Objectives. To determine the circulation of Rickettsia in the years 2010 and 2011 in border locations in four regions of Peru and their clinical epidemiological and molecular characteristics. Materials and Methods. A cross-sectional study was carried out
Rosa Palacios-Salvatierra, Elizabeth Anaya-Ramírez, Julio Juscamayta-López, Omar Cáceres-Rey, Leonardo Mendoza-Uribe, Patricia Mosquera-Visaloth, Fátima Conceição-Silva   +6 more
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Dissemination of bloodmeal acquired Rickettsia felis in cat fleas, Ctenocephalides felis [PDF]

Parasites & Vectors, 2013
Cat fleas, Ctenocephalides felis, are known biological vectors for Rickettsia felis. Rickettsial transmission can be vertical via transovarial transmission within a flea population, as well as horizontal between fleas through a bloodmeal. The previously undescribed infection kinetics of bloodmeal-acquired R. felis in cat fleas provides insight into the
Thepparit, Chutima, Hirunkanokpun, Supanee, Popov, Vsevolod L, Foil, Lane D, Macaluso, Kevin R   +4 more
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