Star Tick
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Atividade carrapaticida do Timol sobre larvas e ninfas de Amblyomma cajennense (Acari, Ixodidae) fêmeas ingurgitadas e ovos de Rhipicephalus (Boophilus) microplus (Acari, Ixodidae)
Dentre as várias espécies de ixodídeos existentes na região neotropical, Rhipicephalus (Boophilus) microplus e Amblyomma cajennense são duas das que despertam maior interesse econômico e em saúde pública, ocasionando perdas na produção animal e atuando como vetores de agentes patogênicos. A utilização de carrapaticidas químicos sintéticos é o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/01/2011
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2. Evaluation of activity of synthetic chemical acaricides, botanical extract on Rhipicephalus sanguineus and action of essential oils on Amblyomma cajennense. / Avaliação da atividade de acaricidas químicos sintéticos, extrato botânico sobre Rhipicephalus sanguineus e ação dos óleos essenciais sobre Amblyomma cajennens.
Amblyomma cajennense (Fabricius, 1787) (Acari, Ixodidae) known as tick-star, is a ixodid heteroxenous tree-host found too often in horses. Have little specific parasite, particularly in periods of larvae and nymph, is considered the most important in ixodid transmission of spotted fever to humans in Brazil. Rhipicephalus sanguineus, tick ectoparasite mainly
Publicado em: 2008
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3. Evaluation of activity of synthetic chemical acaricides, botanical extract on Rhipicephalus sanguineus and action of essential oils on Amblyomma cajennense. / Avaliação da atividade de acaricidas químicos sintéticos, extrato botânico sobre Rhipicephalus sanguineus e ação dos óleos essenciais sobre Amblyomma cajennens.
Amblyomma cajennense (Fabricius, 1787) (Acari, Ixodidae) known as tick-star, is a ixodid heteroxenous tree-host found too often in horses. Have little specific parasite, particularly in periods of larvae and nymph, is considered the most important in ixodid transmission of spotted fever to humans in Brazil. Rhipicephalus sanguineus, tick ectoparasite mainly
Publicado em: 2008
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4. Produção, caracterização e avaliação da imunogenicidade do complexo protéico MSP1 recombinante (rMSP1a erMSP1b) de isolado paranaense do anaplasma marginale
The Anaplasma marginale (Rickettsiales: Anaplasmataceae) is a pathogen that cause bovine anaplasmosis. This disease occurs in world wide, and it is more frequently in tropical and subtropical areas, causing important economic losses in cattle herds. Six Major Surface Protein (MSP1a, MSP1b, MSP2, MSP3, MSP4 and MSP5) have been identified in A. marginale. The
Publicado em: 2006
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5. The travels of a lone star tick.
A lone-star tick, Amblyomma americanum, was found as a pedunculated lesion on the back of the arm of an 84 year old man in Northern Ireland. This was acquired on a visit to the USA. The tick is found mainly in Texas and the Ozark mountains of Missouri, with scattered foci in other parts of southern USA. It is the vector of Rocky Mountain spotted fever. As wo
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6. First Culture Isolation of Borrelia lonestari, Putative Agent of Southern Tick-Associated Rash Illness
Southern tick-associated rash illness (STARI) is a Lyme disease-like infection described in patients in the southeastern and south-central United States, where classic Lyme disease is relatively rare. STARI develops following the bite of a lone star tick (Amblyomma americanum) and is thought to be caused by infection with an “uncultivable” spirochete ten
American Society for Microbiology.
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7. Isolation and transmission of the Lyme disease spirochete from the southeastern United States.
The isolation of the Lyme disease spirochete (Borrelia burgdorferi) from the southeastern United States is reported. Three isolates, two from cotton mice (Peromyscus gossypinus) and one from the black-legged tick (Ixodes scapularis), were recovered from Sapelo Island, Georgia, in July and September 1991. The spirochetes were characterized by indirect fluores
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8. Lone Star Tick-Infecting Borreliae Are Most Closely Related to the Agent of Bovine Borreliosis
Although Borrelia theileri, the agent of bovine borreliosis, was described at the turn of the century (in 1903), its relationship with borreliae causing Lyme disease or relapsing fever remains undescribed. We tested the previously published hypothesis that spirochetes infecting Lone Star ticks (Amblyomma americanum) may comprise B. theileri by analyzing the
American Society for Microbiology.
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9. Sensitive Detection of Ehrlichia chaffeensis in Cell Culture, Blood, and Tick Specimens by Reverse Transcription-PCR
Ehrlichia chaffeensis is an obligatory intracellular bacterium of monocytes and macrophages and the etiologic agent of human monocytic ehrlichiosis, an emerging zoonosis. The Lone Star tick (Amblyomma americanum) has been implicated as the primary vector of E. chaffeensis. The present study examined the sensitivity of the nested reverse transcription (RT)-PC
American Society for Microbiology.
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10. Phylogenetic Placement of Rickettsiae from the Ticks Amblyomma americanum and Ixodes scapularis†
A rickettsial isolate (isolate MOAa) belonging to the spotted fever group (SFG) was obtained from the lone star tick Amblyomma americanum. We used PCR to characterize the genes for the rickettsial outer membrane proteins rOmpA and rOmpB. We sequenced the PCR products (domains I of both the rompA gene and the rompB gene) of MOAa and WB-8-2, another rickettsia
American Society for Microbiology.
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11. Isolation of Ehrlichia chaffeensis from wild white-tailed deer (Odocoileus virginianus) confirms their role as natural reservoir hosts.
Field and experimental studies have implicated white-tailed deer (Odocoileus virginianus) as probable reservoir hosts for Ehrlichia chaffeensis, the causative agent of human monocytic ehrlichiosis, but natural infection in deer has not been confirmed through isolation of E. chaffeensis. Thirty-five white-tailed deer collected from three Amblyomma americanum-