Results 71 to 80 of about 46,726 (278)

Diversity of Rickettsia species in collected ticks from Southeast Iran

open access: yesBMC Veterinary Research
Rickettsia occurs worldwide and rickettsiosis is recognized as an emerging infection in several parts of the world. Ticks are reservoir hosts for pathogenic Rickettsia species in humans and domestic animals.
Ali Qorbani   +5 more
doaj   +1 more source

Spotted Fever Group Rickettsiae in Ticks, Morocco

open access: yesEmerging Infectious Diseases, 2008
A total of 370 ticks, encompassing 7 species from 4 genera, were collected during 2002–2006 from domestic animals and vegetation in the Taza region of northeastern Morocco.
Mhammed Sarih   +5 more
doaj   +1 more source

Advances in Rickettsia Pathogenicity

open access: yesAnnals of the New York Academy of Sciences, 2009
One century after the first description of rickettsiae as human pathogens, the rickettsiosis remained poorly understood diseases. These microorganisms are indeed characterized by a strictly intracellular location which has, for long, prohibited their detailed study.
Balraj, P., Renesto, P., /Raoult, Didier
openaire   +4 more sources

DIRECT FLUOROCHROMING OF RICKETTSIAE [PDF]

open access: yesJournal of Histochemistry & Cytochemistry, 1964
Several fluorochromes were used to stains directly R. mooseri in smears and tissues. The effects of fixatives, hydrogen ion concentration, time in stain and concentration of stain were studied also. Interference by background fluoresence was minimized by a preliminary staining of fixed preparations with an alcian blue, periodic acid-Schiff sequence ...
Doris Anderson, Donald Greiff
openaire   +3 more sources

A comparison of super‐resolution microscopy techniques for imaging tightly packed microcolonies of an obligate intracellular bacterium

open access: yesJournal of Microscopy, EarlyView.
Abstract Conventional optical microscopy imaging of obligate intracellular bacteria is hampered by the small size of bacterial cells, tight clustering exhibited by some bacterial species and challenges relating to labelling such as background from host cells, a lack of validated reagents, and a lack of tools for genetic manipulation.
Alison J. North   +7 more
wiley   +1 more source

Bilateral arterial occlusions masking retinitis in a HIV-positive male

open access: yesIndian Journal of Ophthalmology, 2018
We report an interesting case of 36-year-old HIV-positive male with uveitis, cilioretinal artery occlusion in OD, and superotemporal branch retinal artery occlusion in OS.
Kalpana Babu   +2 more
doaj   +1 more source

Borrelia burgdorferi s.l. and rickettsia spp. in ticks collected from european part of turkey [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2013
This study was performed in ticks collected with the flagging method from localities situated along Anatolian side of Istanbul to the Bulgarian border of Turkey which is under the effect of Black Sea climate.
KAR S   +4 more
doaj   +1 more source

Molecular detection of Rickettsia felis in dogs, rodents and cat fleas in Zambia

open access: yesParasites & Vectors, 2019
Flea-borne spotted fever is a zoonosis caused by Rickettsia felis, a Gram-negative obligate intracellular bacterium. The disease has a worldwide distribution including western and eastern sub-Saharan Africa where it is associated with febrile illness in ...
L. Moonga   +10 more
semanticscholar   +1 more source

Viruses and Rickettsiae

open access: yesBrain Pathology, 1997
In this review I shall try to provide a brief, up‐to‐date, account of the neuropathology of those viral and rickettsial diseases that are particularly prevalent in tropical regions. These diseases are not, however, exclusive to the tropics. Some, such as AIDS, are common in temperate regions as well, though others are closer to being exclusively ...
openaire   +4 more sources

Limited genomic signatures of population collapse in the critically endangered black abalone (Haliotis cracherodii)

open access: yesMolecular Ecology, EarlyView.
Abstract The black abalone, Haliotis cracherodii, is a large, long‐lived marine mollusc that inhabits rocky intertidal habitats along the coast of California and Mexico. In 1985, populations were impacted by a bacterial disease known as withering syndrome (WS) that wiped out >90% of individuals, leading to the closure of all U.S.
Brock Wooldridge   +10 more
wiley   +1 more source

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