Genome sequence of Rickettsia bellii illuminates the role of amoebae in gene exchanges between intracellular pathogens. [PDF]
PLoS Genetics, 2006 The recently sequenced Rickettsia felis genome revealed an unexpected plasmid carrying several genes usually associated with DNA transfer, suggesting that ancestral rickettsiae might have been endowed with a conjugation apparatus.
Hiroyuki Ogata +8 more
doaj +6 more sources
Serosurvey on rickettsiae of the spotted fever group and Rickettsia bellii among dogs in the state of Goiás, Brazil [PDF]
Revista Brasileira de Parasitologia Veterinária, 2020 The purpose of this study was to do a serological survey on three rickettsial species: Rickettsia rickettsii and Rickettsia parkeri, two species of the spotted fever group (SFG) that are considered to be great importance for public health; and Rickettsia
Lucianne Cardoso Neves +8 more
doaj +4 more sources
Biomédica: revista del Instituto Nacional de Salud, 2007 Introducción. En Brasil, los capibaras (Hydrochoerus hydrochaeris) son importantes huéspedes para garrapatas del género Amblyomma, las cuales transmiten rickettsiosis a humanos y animales.
Richard C. Pacheco +5 more
doaj +4 more sources
Journal of Infection in Developing Countries, 2016 Introduction: Sources of pathogenic Rickettsia in wildlife are largely unknown in Brazil. In this work, potential tick vectors and seroreactivity of small mammals against four spotted-fever group Rickettsia (R. rickettsii, R. parkeri, R.
Marcella Gonçalves Coelho +11 more
doaj +4 more sources
Novos relatos de carrapatos infectados por Rickettsia bellii no Brasil [PDF]
Brazilian Journal of Veterinary Research and Animal Science, 2017 This study investigated the occurrence of rickettsial infection in ticks collected from wild animals in two areas of Brazil. Amblyomma dubitatum ticks were collected from a capybara (Hydrochoerus hydrochaeris) in Guarda-Mor municipality, state of Minas ...
Barbieri, Amália Regina +5 more
core +11 more sources
Brazilian Journal of Infectious Diseases, 2023 Introdução e objetivo: No estado de São Paulo as capivaras são as principais hospedeiras amplificadoras da Rickettsia rickettsii, agente etiológico da febre maculosa brasileira (FMB), para o carrapato vetor Amblyomma sculptum.
Lina de Campos Binder +4 more
doaj +2 more sources
Assessment of the Pathogenicity of <i>Rickettsia amblyommatis</i>, <i>Rickettsia bellii</i>, and <i>Rickettsia montanensis</i> in a Guinea Pig Model. [PDF]
Vector Borne Zoonotic Dis, 2021 Members of the genus Rickettsia range from nonpathogenic endosymbionts to virulent pathogens such as Rickettsia rickettsii, the causative agent of Rocky Mountain spotted fever. Many rickettsiae are considered nonpathogenic because they have been isolated from ticks but not vertebrate hosts.
Snellgrove AN +3 more
europepmc +4 more sources
Spatial Distribution of Equid Exposure to Rickettsia spp. in Goiás State, Midwestern Brazil [PDF]
PathogensThis study sought to investigate the presence of anti-Rickettsia spp. antibodies in georeferenced serum samples from equids across all regions of the state of Goiás, while also presenting variables that indicate risk factors for the circulation of ...
Gracielle Teles Pádua +14 more
doaj +2 more sources
High Seroprevalence for Rickettsia rickettsii in Equines Suggests Risk of Human Infection in Silent Areas for the Brazilian Spotted Fever. [PDF]
PLoS ONE, 2016 Equines play a role in the epidemiology of Brazilian spotted fever (BSF) since they are a primary host for the tick Amblyomma sculptum. We studied the seroprevalence for three species of Rickettsia in equines in four endemic (with human cases) and in ...
Celso Eduardo Souza +3 more
doaj +4 more sources
Serological and Molecular Survey of Rickettsial Agents in Wild Boars (Sus scrofa) from Midwestern Brazil [PDF]
AnimalsWild boars (Sus scrofa L.) are considered among the most harmful invasive species worldwide, causing irreversible ecosystem damage, acting as zoonotic spreaders and reservoirs, threatening human and animal health, and having an important economic impact.
Nicolas Jalowitzki de Lima +14 more
doaj +2 more sources