46 research outputs found
Thermodynamic modeling of ternary liquid-liquid systems with forming immiscibility islands
Influence of neutral and charged species on the plasma degradation of the stearic acid
Relação Espacial do Carbono da Vegetação e Matéria Orgânica do Solo na Serra da Mantiqueira
Organização, disponibilização e possibilidades de análise de dados sobre desastres de origem climática e seus impactos sobre a saúde no Brasil
Initial Recovery of Organic Matter of a Grass-Covered Constructed Soil after Coal Mining
Molecular identification of Rickettsia felis in ticks and fleas from an endemic area for Brazilian spotted fever
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 EspĂrito Santo. A total of 502 ectoparasites, among them Amblyomma cajennense, Amblyomma dubitatum (A. cooperi), Riphicephalus sanguineus, Anocentor nitens and Ctenocephalides felis, was collected from domestic animals and the environment and separated in 152 lots according to the origin. Rickettsia sp. was detected in pools of all collected species by amplification of 17kDa protein-encoding gene fragments. The products of PCR amplification of three samples were sequenced, and Rickettsia felis was identified in R. sanguineus and C. felis. These results confirm the presence of Rickettsia felis in areas previously known as endemic for BSF, disease caused by Rickettsia rickettsii. Moreover, they show the needing of further studies for deeper knowledge of R. felis-spotted fever epidemiology and differentiation of these diseases in Brazil