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Luciano Toma, Fabiola Mancini, Marco Di Luca, Jacopo G Cecere, Riccardo Bianchi, Cristina Khoury, Elisa Quarchioni, Francesca Manzia, Giovanni Rezza, Alessandra Ciervo
Tick species characterization and molecular studies were performed within ornithological surveys conducted during 2010 and 2011 in the Lazio Region of central Italy. A total of 137 ticks were collected from 41 migratory birds belonging to 17 species (four partial migrants and 13 long-distance migrants). Most ticks were nymphs, with a predominance of Hyalomma marginatum marginatum and H. m. rufipes, and a small portion of Ixodes and Amblyomma species. All tick species analyzed were infected, and the molecular pathogen recognition revealed the presence of Rickettsia aeschlimannii, Rickettsia africae, Erlichia spp...
March 2014: Vector Borne and Zoonotic Diseases
R Dhamodharan, Sl Hoti, G Sivapragasam, Mk Das
BACKGROUND: Periplasmic serine proteases of HtrA type of Wolbachia have been shown to play a role in the pathogenesis of filarial disease. AIMS: This study was aimed to sequence Wb-HtrA serine protease and analyze its phylogenetic position by comparing with other filarial and non-filarial nematode homologs. MATERIALS AND METHODS: Partial HtrA gene fragment was amplified from DNA isolated from periodic and sub-periodic Wuchereria bancrofti parasites collected from Pondicherry and Nicobar islands, respectively...
July 2011: Tropical Parasitology
L P kolchanova, E A Bragina
The data on the study of Ixodes trianguliceps Bir. collected from small mammals in the southern taiga forests of Tyumen Province with the PCR-hybridization with fluorescent detection method are given. DNA of Erlichua and Anaplasma was revealed in ticks of this species for the first time; mixed infection with both these pathogens was also demonstrated.
July 2011: Parazitologiia
L S Karan', N M Koliasnikova, M G Toporkova, M A Makhneva, M V Nadezhdina, A Iu Esaulkova, V V Romanenko, E A Arumova, A E Platonov, V V Maleev
AIM: To create and test the complex of polymerase chain reaction-based methods for detection of pathogens vectored by ticks in clinical and environmental samples. MATERIALS AND METHODS: Real time PCR methods with hybridization-fluorescent detection were developed for detection of tick-borne encephalitis virus, Borrelia burgdorferi sensu lato, Anaplasma phagocytophillum, Erlichia muris/E. chaffeensis, and B. miyamotoi. First four methods were combined in one assay in multiprime format...
May 2010: Zhurnal Mikrobiologii, Epidemiologii, i Immunobiologii
Milomir Dokić, Petar Curcić, Darko Nozić, Branislav Lako, Vesna Begović, Radmila Rajić-Dimitrijević, Dejan Hristović
BACKGROUND: Human ehrlichiosis is a newly recognized disease. It is a tick-borne disease caused by several bacterial species of the genhus Erlichia. These are small gram-negative pleomorphic cocci, that are obligatory intracellular bacteria. Tick Ixodes is the principle vector in Europe, and Amblyomma amenicanum in the United States. Bacterial organisms replicate in a tick, and are transmited from infected cells in a vector to the blood cells of animals or humans. Human ehrlichiosis is a name for a group of diseases caused by different species of Ehrlichia...
April 2006: Vojnosanitetski Pregled. Military-medical and Pharmaceutical Review
No abstract text is available yet for this article.
June 15, 1964: Comptes Rendus Hebdomadaires des Séances de L'Académie des Sciences
E P Lukin, P A Grabarev
The review presents data on the natural circulation of Bartonellas and Erlichias with the participation of lice, fleas, mosquitoes, Ixodes ticks, as well as rodents, large wild mammals, and domestic animals. It outlines the human infection routes that are mainly associated with the attack of infected carriers and with the contacts with different warm-blooded animals. The risk of bartonellosis spread is evidenced by the data showing that 12.3% of clothes lice collected from homeless individuals in Moscow turned out to be infected...
October 1999: Meditsinskaia Parazitologiia i Parazitarnye Bolezni
J S Dumler, K M Asanovich, J S Bakken, P Richter, R Kimsey, J E Madigan
Homology in the 16S rDNAs shows that the agent of human granulocytic ehrlichiosis (HGE) is closely related to the veterinary pathogens Erlichia equi and Erlichia phagocytophila. After HGE, patients develop antibodies reactive with E. equi and E. phagocytophila; thus, we hypothesized that these species are closely related and share significant antigenicity. Antisera from humans, horses, dogs, and cattle were tested by indirect fluorescent-antibody assay (IFA) for antibodies reactive with E. equi and other ehrlichiae and tested by immunoblot to identify the specific reactions with E...
May 1995: Journal of Clinical Microbiology
M Rioche
No abstract text is available yet for this article.
1967: Revue D'élevage et de Médecine Vétérinaire des Pays Tropicaux
Y Rikihisa
Dogs orally infected with Neorickettsia helminthoeca developed immunoglobulin G titers against Erlichia risticii, Erlichia sennetsu, and Erlichia canis similar to those against N. helminthoeca antigen, as determined by immunofluorescence. Western immunoblotting showed that the major common antigens shared among the microorganisms were 80- or 78-kDa and 64-kDa polypeptides. In contrast, horse anti-E. risticii and anti-E. sennetsu and dog anti-E. canis sera reacted more weakly to N. helminthoeca antigen than to homologous antigens in both immunofluorescence and Western immunoblotting...
September 1991: Journal of Clinical Microbiology
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