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Rickettsia rickettsii

CABI Compendium, 2022
This datasheet on Rickettsia rickettsii covers Identity, Distribution, Hosts/Species Affected, Vectors & Intermediate Hosts.

semanticscholar   +1 more source

Rickettsia rickettsii and Rickettsia montana from Ixodid Ticks in Connecticut

The American Journal of Tropical Medicine and Hygiene, 1986
Dermacentor variabilis, infected with spotted fever group rickettsiae, parasitized 8 of 70 raccoons captured in Newtown, Connecticut. The spotted fever agent, Rickettsia rickettsii, was isolated and identified from 4 adult D. variabilis and from 1 nymphal Ixodes texanus removed from raccoons.
Louis A. Magnarelli, Robert N. Philip, John F. Anderson, Willy Burgdorfer   +3 more
openaire   +2 more sources

Rickettsia rickettsii in Rhipicephalus Ticks, Mexicali, Mexico

Journal of Medical Entomology, 2011
Circulation of a unique genetic type of Rickettsia rickettsii in ticks of the Rhipicephalus sanguineus complex was detected in Mexicali, Baja California, Mexico. The Mexican R. rickettsii differed from all isolates previously characterized from the endemic regions of Rocky Mountain spotted fever in northern, central, and southern Americas ...
Donald Macbeth, Celia Alpuche Aranda, Maria L. Zambrano, Lorenza Beati, Marina E. Eremeeva, Sandor E. Karpathy, Hector Olguin, Gregory A. Dasch, Beatriz Salceda, Maria Margarida Santos-Silva, Maria Margarida Santos-Silva, Luis Anaya   +11 more
openaire   +3 more sources

A PLAQUE PROCEDURE FOR THE ASSAY OF RICKETTSIA RICKETTSII [PDF]

, 1968
Abstract : A plaque technique for the assay of Rickettsia rickettsii is described. The method employs primary chick fibroblast cell cultures with a semisolid agar overlay. Plaques were observed after 6 days' incubation, and the titers correlated well with those obtained in embryonated eggs infected by the yolk-sac route.
Edmund H. Weinberg, Jack R. Stakebake, Peter J. Gerone   +2 more
openaire   +1 more source

Rickettsia rickettsii (Rickettsiales: Rickettsiaceae) Infecting Amblyomma sculptum (Acari: Ixodidae) Ticks and Capybaras in a Brazilian Spotted Fever-Endemic Area of Brazil

Journal of medical entomology, 2019
The bacterium Rickettsia rickettsii is the agent of Brazilian spotted fever (BSF), a highly fatal disease that is transmitted in Brazil mainly by the tick Amblyomma sculptum Berlese, which uses capybaras (Hydrochoerus hydrochaeris Linnaeus) as major ...
F. Costa, M. Gerardi, Lina C. Binder, H. Benatti, M. C. Serpa, B. Lopes, H. R. Luz, K. Ferraz, M. Labruna   +8 more
semanticscholar   +1 more source

The Dynamics of Ticks and Capybaras in a Residential Park Area in Southeastern Brazil: Implications for the Risk of Rickettsia rickettsii Infection.

Vector Borne and Zoonotic Diseases, 2019
The bacterium Rickettsia rickettsii causes Brazilian spotted fever (BSF), a highly lethal disease that is transmitted by Amblyomma sculptum ticks in areas where capybaras (Hydrochoerus hydrochaeris) are the tick's major hosts. In this study, we evaluated
Fernanda B. Passos Nunes, S. C. da Silva, Alex Deiws Cieto, M. Labruna   +3 more
semanticscholar   +1 more source

Infection of Human Vascular Endothelial Cells by Rickettsia rickettsii

Journal of Infectious Diseases, 1984
Rocky Mountain spotted fever is caused by Rickettsia rickettsii, an obligate intracellular bacterial parasite. The organism primarily attacks endothelial cells and occasionally attacks smooth-muscle cells of small blood vessels. An effective means of examining host-parasite interaction in Rocky Mountain spotted fever would be to use an in vitro model ...
Sheila B. Bond, David Silverman
openaire   +3 more sources

THORACIC RADIOGRAPHIC FINDINGS IN DOGS INFECTED WITH RICKETTSIA RICKETTSII

Veterinary Radiology & Ultrasound, 1997
Sixteen beagle dogs were injected intradermally withRickettsia rickettsii.The dogs were divided into four groups (n=4):1) infected, non‐treated withdoxycycline;3) infected, treated with doxycycline and an anti‐inflammatory dose of corticosteroid;4) infected, treated with ocular fluoresein angiograhphy was performed on days 6, 10, 17 post‐inoculatin.A ...
Michael G. Davidson, Edward B. Breitschwerdt, Clifford R. Berry, Wm Tod Drost   +3 more
openaire   +3 more sources

Platelet Aggregation in Dogs Experimentally Infected with Rickettsia rickettsii

Veterinary Clinical Pathology, 1990
SummaryPlatelet aggregation studies were performed on nine Beagle dogs experimentally infected with Rickettsia rickettsii. Platelets from dogs with Rocky Mountain spotted fever tended to be more aggregable than controls.
W T Corbett, Michael G. Levy, Carol B. Grindem, Michael G. Davidson, Edward B. Breitschwerdt   +4 more
openaire   +3 more sources

Natural infection of dogs on Cape Cod with Rickettsia rickettsii

Journal of Clinical Microbiology, 1979
Four isolates of rickettsiae from sick dogs on Cape Cod, Mass., were serologically identical to isolates of Rickettsia rickettsii from human patients with Rocky Mountain spotted fever. The antigenic analysis used the indirect fluorescent-antibody test and antisera prepared in mice to each of the isolates and to reference strains of R.
W C Feng, J M Spielman, J L Waner, G E Rosenberg, E S Murray   +4 more
openaire   +3 more sources