Results 41 to 50 of about 14,699 (253)

Spotted Fever Group Rickettsiae in Ticks, Germany

open access: yesEmerging Infectious Diseases, 2011
To explore increased risk for human Rickettsia spp. infection in Germany, we investigated recreational areas and renatured brown coal surface-mining sites (also used for recreation) for the presence of spotted fever group rickettsiae in ticks. R. raoultii (56.7%), R. slovaca (13.3%), and R.
Cornelia Silaghi   +4 more
openaire   +3 more sources

Survey of vector-borne agents in feral cats and first report of Babesia gibsoni in cats on St Kitts, West Indies [PDF]

open access: yes, 2017
Background: As there is little data on vector-borne diseases of cats in the Caribbean region and even around the world, we tested feral cats from St Kitts by PCR to detect infections with Babesia, Ehrlichia and spotted fever group Rickettsia (SFGR) and
Branford, Gillian Carmichael   +8 more
core   +1 more source

Amblyomma maculatum Feeding Augments Rickettsia parkeri Infection in a Rhesus Macaque Model: A Pilot Study. [PDF]

open access: yesPLoS ONE, 2015
Rickettsia parkeri is an emerging eschar-causing human pathogen in the spotted fever group of Rickettsia and is transmitted by the Gulf coast tick, Amblyomma maculatum.
Kaikhushroo H Banajee   +5 more
doaj   +1 more source

High prevalence of Rickettsia africae variants in Amblyomma variegatum ticks from domestic mammals in rural western Kenya: implications for human health [PDF]

open access: yes, 2014
Tick-borne spotted fever group (SFG) rickettsioses are emerging human diseases caused by obligate intracellular Gram-negative bacteria of the genus Rickettsia.
Ade, Fredrick   +13 more
core   +3 more sources

Surface proteins of typhus and spotted fever group rickettsiae [PDF]

open access: yesInfection and Immunity, 1978
Six proteins, previously established as major constituents of intact organisms, were identified in cell envelopes obtained from intrinsically radiolabeled Rickettsia prowazekii. Extrinsic radioiodination of intact organisms conducted at 0.5 micronM iodide indicated that protein 4 was the most peripheral, although protein 1 also had reactive groups ...
J V, Osterman, C S, Eisemann
openaire   +2 more sources

Infecção por riquétsias em carrapatos de aves silvestres em duas ecorregiões da Argentina [PDF]

open access: yes, 2016
Several tick-borne Rickettsia species are recognized human pathogens in Argentina. Here we evaluated rickettsial infection in ticks collected on passerine birds during 2011-2012 in two eco-regions of Argentina.
Borges Costa, Francisco   +4 more
core   +1 more source

Primary isolation of spotted fever group rickettsiae from Amblyomma cooperi collected from Hydrochaeris hydrochaeris in Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 1996
This paper reports the first isolation of a spotted fever group rickettsia from an Amblyomma cooperi ixodid collected from a capybara (Hydrochaeris hydrochaeris) in an endemic area of spotted fever in the County of Pedreira, State of São Paulo, Brazil ...
Elba Regina Sampaio de Lemos   +7 more
doaj   +1 more source

Regulator of Actin-Based Motility (RoaM) Downregulates Actin Tail Formation by Rickettsia rickettsii and Is Negatively Selected in Mammalian Cell Culture

open access: yesmBio, 2022
The etiological agent of Rocky Mountain spotted fever, Rickettsia rickettsii, is an obligately intracellular pathogen that induces the polymerization of actin filaments to propel the bacterium through the cytoplasm and spread to new host cells.
Adam M. Nock   +2 more
doaj   +1 more source

A rickettsia infection from Saudi Arabia

open access: yesInternational Journal of Infectious Diseases, 2020
We here present a young patient who developed fever, headache, maculopapular skin rash and an eschar 3 days following a tick bite. Serology for Rickettsia was consistent with acute spotted fever group (SFG) infection.
Fatehi E. Elzein   +4 more
doaj   +1 more source

Molecular and serological evidence of flea-associated typhus group and spotted fever group rickettsial infections in Madagascar [PDF]

open access: yes, 2017
This research was supported by the Wellcome Trust (RCDF and Senior Fellowship to ST, #081705 and #095171), the Institut Pasteur de Madagascar, and the Global Emerging Infections Surveillance and Response System, a Division of the Armed Forces Health ...
Harrison, Thomas Alan   +6 more
core   +2 more sources

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