نتایج جستجو برای: rickettsia

تعداد نتایج: 3503  

Journal: :Ticks and tick-borne diseases 2014
Andrés F Londoño Francisco J Díaz Gustavo Valbuena Michal Gazi Marcelo B Labruna Marylin Hidalgo Salim Mattar Verónica Contreras Juan D Rodas

Our goal was to understand rickettsial spotted fevers' circulation in areas of previous outbreaks reported from 2006 to 2008 in Colombia. We herein present molecular identification and isolation of Rickettsia sp. Atlantic rainforest strain from Amblyomma ovale ticks, a strain shown to be pathogenic to humans. Infected ticks were found on dogs and a rodent in Antioquia and Córdoba Provinces. Thi...

Journal: :Memorias do Instituto Oswaldo Cruz 2005
Elvira Maria Mendes Nascimento Flávia de Sousa Gehrke Rosa Amélia Maldonado Silvia Colombo Luiz Jacintho da Silva Teresinha Tizu Sato Schumaker

Brazilian spotted fever (BSF) cases have been increasing in the state of São Paulo but no genomic information about local rickettsia isolated from humans has been well documented. We recovered spotted-fever group rickettsiae from a sample of patient blood cultured in Vero cells using the shell vial technique. Rickettsial DNA fragments (gltA, ompA, and, ompB genes) were detected, and analysis of...

Journal: :Memorias do Instituto Oswaldo Cruz 2008
K A Oliveira L S Oliveira C C A Dias A Silva M R Almeida G Almada D H Bouyer M A M Galvão Cl Mafra

Rickettsioses are arthropod-borne diseases caused by parasites from the Order Rickettsiales. The most prevalent rickettsial disease in Brazil is Brazilian Spotted Fever (BSF). This work intends the molecular detection of those agents in ectoparasites from an endemic area of BSF in the state of Espírito Santo. A total of 502 ectoparasites, among them Amblyomma cajennense, Amblyomma dubitatum (A....

Journal: :Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria 2013
Mariana Granziera Spolidorio Antonio Humberto Hamad Minervino Samantha Yuri Oshiro Branco Valadas Herbert Sousa Soares Kedson Alessandri Lobo Neves Marcelo Bahia Labruna Múcio Flavio Barbosa Ribeiro Solange Maria Gennari

Canine ehrlichiosis and babesiosis are the most prevalent tick-borne diseases in Brazilian dogs. Few studies have focused attention in surveying tick-borne diseases in the Brazilian Amazon region. A total of 129 blood samples were collected from dogs living in the Brazilian eastern Amazon. Seventy-two samples from dogs from rural areas of 19 municipalities and 57 samples from urban stray dogs f...

Journal: :Applied and environmental microbiology 2001
J H von der Schulenburg M Habig J J Sloggett K M Webberley D Bertrand G D Hurst M E Majerus

The diversity of endosymbiotic bacteria that kill male host offspring during embryogenesis and their frequencies in certain groups of host taxa suggest that the evolution of male killing and the subsequent spread of male-killing symbionts are primarily determined by host life history characteristics. We studied the 10-spot ladybird beetle, Adalia decempunctata L. (Coleoptera: Coccinellidae), in...

Journal: :Journal of Medical Case Reports 2008
Rifat Rashid Alessandro C Pasqualotto David W Denning

INTRODUCTION Spotted fever group rickettsioses are an interesting group of infections, which are increasing in incidence worldwide. CASE PRESENTATION Here we describe an imported case to the United Kingdom occurring in a patient who had recently visited Kruger National Park in South Africa - a highly endemic area for Rickettsia infections. Initial treatment with doxycycline failed but the pat...

Journal: :Journal of clinical microbiology 1979
C W Moss S B Dees

The cellular fatty acid composition of OLDA, a rickettsia-like agent isolated in 1947, was essentially identical to that of the Legionnaires disease bacterium (LDB). WIGA, another rickettsia-like agent isolated in 1959, contained the same fatty acids as OLDA and other LDB but differed significantly from these strains in relative amounts of the major acids present. The major acid of OLDA and oth...

Journal: :Enfermedades infecciosas y microbiologia clinica 2017
Margarita Bolaños-Rivero Cristina Carranza-Rodríguez Michele Hernández-Cabrera Elena Pisos-Álamo Nieves Jaén-Sánchez José-Luis Pérez-Arellano

Most cases of fever of intermediate duration (FDI) in Spain are associated with infectious diseases (mainly Q fever and rickettsia infections). In clinical practice, the causal diagnosis of these entities is based on immunodiagnostic techniques, which are of little help in the early stages. Therefore, the aim of this study was to evaluate the usefulness of molecular techniques for the early dia...

Journal: :The American journal of tropical medicine and hygiene 1998
F J Márquez M A Muniain R C Soriguer G Izquierdo J Rodríguez-Baño M V Borobio

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). On the basis of the results of the citrate synthase (glta) gene, 190 kD-outer membrane protein (rOmpA) gene, and 16S ribosomal RNA (16S rRNA) gene partial sequence data, it was found that this rick...

Journal: :Vector borne and zoonotic diseases 2011
Suporn Foongladda Dutsadee Inthawong Uraiwan Kositanont Jariyanart Gaywee

Flea and tick specimens (5-10 fleas or ticks) on dogs and cats from various sites in Bangkok were tested by polymerase chain reaction and DNA sequencing to detect DNA of bacteria Rickettsia (gltA and 17 kDa genes), Anaplasmataceae (16S rRNA gene), and Bartonella (pap31 and its genes). We confirmed that Rickettsia sp. related to Rickettsia felis was detected in 66 of 98 (67.4%) flea specimens fr...

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