Seroprevalence of Rickettsia bellii and Rickettsia felis in dogs, São José dos Pinhais, State of Paraná, Brazil Soroprevalência de Rickettsia bellii e Rickettsia felis em cães, São José dos Pinhais, Paraná, Brasil [PDF]
Revista Brasileira de Parasitologia Veterinária, 2010 Brazilian spotted fever (BSF) is a vector-borne zoonosis caused by Rickettsia rickettsii bacteria. Dogs can be host sentinels for this bacterium. The aim of the study was to determine the presence of antibodies against Rickettsia spp.
Fernanda Silva Fortes +7 more
doaj +9 more sources
Ixodes tropicalis (Acari: Ixodidae) infesting a human and molecular detection of Rickettsia bellii, Colombia [PDF]
Biomédica: revista del Instituto Nacional de Salud, 2021 Introduction: Ixodes tropicalis is a little-known tick species reported parasitizing wild rodents only in Colombia and Perú. Objective: To report a case of I.
Juan Carlos Quintero +3 more
doaj +6 more sources
The Effect of Rickettsia bellii on Anaplasma marginale Infection in Dermacentor andersoni Cell Culture [PDF]
Microorganisms, 2023 Anaplasma marginale is a tick-borne pathogen that causes bovine anaplasmosis, which affects cattle around the world. Despite its broad prevalence and severe economic impacts, limited treatments exist for this disease.
Joseph A. Aspinwall +3 more
doaj +4 more sources
Genotypic Characterization of Rickettsia bellii Reveals Distinct Lineages in the United States and South America. [PDF]
Biomed Res Int, 2018 The bacterium Rickettsia bellii belongs to a basal group of rickettsiae that diverged prior to the pathogenic spotted fever group and typhus group Rickettsia species. Despite a diverse representation of R. bellii across more than 25 species of hard and soft ticks in the American continent, phylogeographical relationships among strains of this basal ...
Krawczak FS +4 more
europepmc +5 more sources
First record of Rickettsia bellii in Amblyomma varium and Amblyomma goeldii from the Eastern Amazon [PDF]
Revista Brasileira de Parasitologia VeterináriaThis study investigated the presence of Rickettsia spp., Ehrlichia spp., Anaplasma spp., and Borrelia spp. DNA in questing ticks collected from a forest fragment under constant anthropogenic pressure in the state of Pará, Brazil. The fragment was divided
Izabela Mesquita Araújo +7 more
doaj +3 more sources
Rickettsia bellii, Rickettsia amblyommii, and Laguna Negra hantavirus in an Indian reserve in the Brazilian Amazon [PDF]
Parasites & Vectors, 2014 Background The purpose of this study was to identify the presence of rickettsia and hantavirus in wild rodents and arthropods in response to an outbreak of acute unidentified febrile illness among Indians in the Halataikwa Indian Reserve, northwest of ...
Lívia de Barros Lopes +15 more
doaj +5 more sources
One health approach to Rickettsia spp.: Brazilian indigenous individuals, their dogs and ticks, and healthcare professionals [PDF]
One HealthAlthough Indigenous populations have historically overlapped the occurrence of vector-borne pathogens, no One Health approach study has investigated Rickettsia spp. in indigenous communities worldwide.
Louise Bach Kmetiuk +12 more
doaj +2 more sources
Microbial diversity of ticks and a novel typhus group Rickettsia species (Rickettsiales bacterium Ac37b) in Inner Mongolia, China [PDF]
Parasite, 2023 Ticks can carry multiple pathogens, and Inner Mongolia’s animal husbandry provides excellent environmental conditions for ticks. This study characterized the microbiome of ticks from different geographical locations in Inner Mongolia; 905 Dermacentor ...
Su Si +11 more
doaj +2 more sources
High seroprevalence of Rickettsia spp. and molecular detection of Rickettsia amblyommatis in human-biting ticks from the eastern Amazon, Brazil [PDF]
Parasites & VectorsBackground In Brazil, spotted fever (SF) is caused by the bacteria Rickettsia parkeri and Rickettsia rickettsii. Seroepidemiological data on Rickettsia spp. in humans are rare in Brazil and nonexistent in the Amazon biome.
Mayra F. F. R. Ferreira +12 more
doaj +2 more sources
Reassessment of the genetic basis of natural rifampin resistance in the genus Rickettsia. [PDF]
MicrobiologyopenContrary to previous studies, the natural resistance of Rickettsia, a genus of intracellular bacteria, to the antibiotic rifampin is not solely due to the Leu‐973 residue in the RNA polymerase β subunit. Abstract Rickettsia, a genus of obligate intracellular bacteria, includes species that cause significant human diseases.
Amoros J +6 more
europepmc +2 more sources