Results 81 to 90 of about 21,258 (244)

Genotypic identification of an undescribed spotted fever group rickettsia in ixodes ricinus from southwestern Spain [PDF]

open access: yes, 1998
An undescribed rickettsia was directly analyzed with specific rickettsial molecular biology tools on Ixodes ricinus L. collected in different localities of the province of Cadiz (southwestern Spain).
Borobio, M. V.   +5 more
core   +1 more source

Rickettsia rickettsii isolation from naturally infected Amblyomma parvum ticks by centrifugation in a 24-well culture plate technique [PDF]

open access: yesOpen Veterinary Journal, 2013
Rocky Mountain spotted fever is an acute illness caused by Rickettsia rickettsii (R. rickettsii) and is transmitted by the bite of ticks of the genera Dermacentor, Amblyomma and Rhipicephalus.
K. Dzul-Rosado   +7 more
doaj  

Latex-Rickettsia rickettsii test reactivity in seropositive patients [PDF]

open access: yesJournal of Clinical Microbiology, 1983
In correlating results obtained from a new latex-Rickettsia rickettsii test with results obtained from a reference microimmunofluorescence test for Rocky Mountain spotted fever, we found that for seropositive patients each microimmunofluorescence titer (up to 4,096) was usually double the median titer obtained from the latex-R. rickettsii test.
K E Hechemy, B B Rubin
openaire   +3 more sources

Rickettsia species infecting Amblyomma ticks from an area endemic for Brazilian spotted fever in Brazil Rickettsia infectando carrapatos Amblyomma de uma área endêmica para febre maculosa Brasileira no Brasil

open access: yesRevista Brasileira de Parasitologia Veterinária, 2011
This study reports rickettsial infection in Amblyomma cajennense and Amblyomma dubitatum ticks collected in an area of the state of Minas Gerais, Brazil, where Brazilian spotted fever is considered endemic. For this purpose, 400 adults of A.
Elizângela Guedes   +4 more
doaj   +1 more source

SURVEY OF Rickettsia spp. IN TICKS IN NACOGDOCHES COUNTY, TEXAS [PDF]

open access: yes, 2018
Rickettsia parkeri is an obligate intracellular pathogenic bacterium that is commonly transmitted by the Gulf Coast tick, Amblyomma maculatum. Rickettsia parkeri is the causative agent of Rickettsia parkeri rickettsiosis, which is a disease characterized
Blakley, Nathaniel
core   +1 more source

Latinamerican guidelines of RIICER for diagnosis of tick-borne rickettsioses [PDF]

open access: yes, 2014
Las rickettsiosis transmitidas por garrapatas son afecciones de distribución mundial, que por diferentes motivos se pueden considerar emergentes y reemergentes.
Abarca, Katia   +7 more
core   +2 more sources

Insights on the phenology of the Asian longhorned tick (Haemaphysalis longicornis) using stored lipids

open access: yesInsect Science, EarlyView.
Lipid analysis of field‐collected ticks unveiled a complex population structure and supports the potential for several stages to overwinter. Abstract The seasonality of Haemaphysalis longicornis in the United States comprises overlapping life stages in the spring and summer.
Matthew Bickerton   +2 more
wiley   +1 more source

Development of a duplex real-time PCR for the detection of Rickettsia spp. and typhus group rickettsia in clinical samples. [PDF]

open access: yes, 2011
Molecular diagnosis using real-time polymerase chain reaction (PCR) may allow earlier diagnosis of rickettsiosis. We developed a duplex real-time PCR that amplifies (1) DNA of any rickettsial species and (2) DNA of both typhus group rickettsia, that is ...
Cometta, A.   +4 more
core   +1 more source

Spatial and temporal analyses of Dermacentor variabilis (Say) (Acari: Ixodidae) in central and eastern Canada

open access: yesMedical and Veterinary Entomology, EarlyView.
One thousand one hundred ninety‐eight adult Dermacentor variabilis (Say), a species of veterinary and human medical importance, were collected from companion animals in central and eastern Canada. Peaks in adult D. variabilis submissions occurred in May and June across the provinces. Most submissions of adult D.
Grace K. Nichol   +4 more
wiley   +1 more source

Detection of Rickettsia spp. in Rhipicephalus sanguineus (sensu lato) collected from free-roaming dogs in Coahuila state, northern Mexico

open access: yesParasites & Vectors, 2019
Background The aim of this study was to detect and molecularly identify Rickettsia spp. in Rhipicephalus sanguineus (sensu lato) collected from free-roaming dogs in 30 communities from five municipalities in the south of Coahuila State, northern Mexico ...
Aldo I. Ortega-Morales   +8 more
doaj   +1 more source

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