Results 41 to 50 of about 3,141 (243)

Rickettsia species infecting Amblyomma ticks from an area endemic for Brazilian spotted fever in Brazil Rickettsia infectando carrapatos Amblyomma de uma área endêmica para febre maculosa Brasileira no Brasil

Revista Brasileira de Parasitologia Veterinária, 2011
This study reports rickettsial infection in Amblyomma cajennense and Amblyomma dubitatum ticks collected in an area of the state of Minas Gerais, Brazil, where Brazilian spotted fever is considered endemic. For this purpose, 400 adults of A.
Elizângela Guedes, Romário Cerqueira Leite, Richard Campos Pacheco, Iara Silveira, Marcelo Bahia Labruna   +4 more
doaj   +1 more source

Infecção por riquétsias em carrapatos de aves silvestres em duas ecorregiões da Argentina [PDF]

, 2016
Several tick-borne Rickettsia species are recognized human pathogens in Argentina. Here we evaluated rickettsial infection in ticks collected on passerine birds during 2011-2012 in two eco-regions of Argentina.
Borges Costa, Francisco, Diaz, Luis Adrian, Flores, Fernando Sebastián, Labruna, Marcelo Bahía, Nava, Santiago   +4 more
core   +1 more source

Amblyomma cajennense

, 2020
19. Amblyomma cajennense (Fabricius, 1787). A Neotropical species previously thought to have a vast geographical distribution extending from northern Argentina to the southern USA (Nava et al. 2014a). Adults and nymphs have chiefly been found on Mammalia (several orders); adults alone have rarely been collected from Testudines: Testudinidae; nymphs
Guglielmone, Alberto A., Petney, Trevor N., Robbins, Richard G.   +2 more
openaire   +2 more sources

Estudo da infecção por Rickettsias do grupo da febre maculosa em humanos e carrapatos de um parque urbano na Cidade de Londrina, Estado do Paraná [PDF]

, 2011
INTRODUCTION: Spotted fevers are emerging zoonoses caused by Rickettsia species in the spotted fever group (SFG). Rickettsia rickettsii is the main etiologic agent of Brazilian spotted fever (BSF) and it is transmitted by Amblyomma spp. ticks.
DUMLER, John Stephen, HAYDU, Valeska Bender, LABRUNA, Marcelo Bahia, PACHECO, Richard Campos, SILVA FILHO, Mauro de Freitas, TAMEKUNI, Katia, TOLEDO, Roberta Santos, VIDOTTO, Odilon   +7 more
core   +2 more sources

Soroprevalência de Borrelia burgdorferi latu sensu associada à presença de carrapatos em cães de áreas rurais do Estado do Rio de Janeiro, Brasil [PDF]

Ciência Rural, 2004
Pesquisou-se a presença de anticorpos contra Borrelia burgdorferi latu sensu em cães de áreas rurais de sete municípios do Estado do Rio de Janeiro, pelo ensaio imunoenzimático indireto, associando-se os resultados com a presença de carrapatos nestes ...
Lucia Helena O'Dwyer, Cleber Oliveira Soares, Carlos Luiz Massard, José Carlos Pereira de Souza, Walter Flausino, Adivaldo Henrique da Fonseca   +5 more
doaj   +1 more source

Dinâmica sazonal de carrapatos (Acari: Ixodidae) na mata ciliar de uma área endêmica para febre maculosa na região de Campinas, São Paulo, Brasil [PDF]

Ciência Rural, 2006
A febre maculosa é mundialmente reconhecida como um problema reemergente de saúde pública. Na região de Campinas-SP, observam-se uma ampliação da área de transmissão do agente da doença e a ocorrência de um maior número de casos confirmados nos últimos ...
Savina Silvana Aparecida Lacerra de Souza, Celso Eduardo de Souza, Elias José Rodrigues Neto, Angelo Pires do Prado   +3 more
doaj   +1 more source

Amblyomma cajennense (Fabricius, 1787) (Ixodida: Ixodidae): human parasitism and the first record from the Acre State, Western Brazilian Amazon

Entomological Communications, 2022
The Cayenne tick, Amblyomma cajennense (Fabricius, 1787) (Ixodida: Ixodidae), parasitizes a range of vertebrate hosts, including humans, accidentally.
Vanessa L. de Souza, Marcos S. de Lima, Thiago F. Martins, Franscio E. da Costa, José R. O. da Silva, José R. L. de Souza   +5 more
doaj   +1 more source

New tick records in Rondônia, Western Brazilian Amazon Novos relatos de carrapatos em Rondônia, Amazônia ocidental brasileira

Revista Brasileira de Parasitologia Veterinária, 2010
In the present study, we provide new tick records from Vilhena Municipality, in the Southeast of the State of Rondônia, Northern Brazil. Ticks collected from a capybara, Hydrochoerus hydrochaeris (Linnaeus), were identified as Amblyomma romitii Tonelli ...
Marcelo Bahia Labruna, Fábio Silva Barbieri, Thiago Fernandes Martins, Luciana Gatto Brito, Francisco Dimas Sales Ribeiro   +4 more
doaj   +1 more source

Cross-reactivity between antigens from Amblyomma cajennense and A. hebraeum (Acari : Ixodidae)

Journal of the South African Veterinary Association, 2004
Laboratory animals exposed to feeding ticks develop resistance which is reflected by a decline in tick engorgement weight, egg-laying by adults and reduced egg viability. Serum antibodies from these hosts and their reaction with tick antigens have been detected by different methods, including precipitation techniques, immunofluorescent techniques ...
M. Hlatshwayo, Matías Pablo Juan Szabó, Gervásio Henrique Bechara, P. A. Mbati   +3 more
openalex   +6 more sources

Rickettsia infection in Amblyomma tonelliae, a tick species from the Amblyomma cajennense complex

Ticks and Tick-borne Diseases, 2015
The present study was performed to evaluate the Rickettsia infection in Amblyomma tonelliae ticks from Argentina. All ticks were subjected to DNA extraction and tested by a battery of PCRs to amplify fragments of four rickettsial genes, 23S-5S, gltA, ompA and htrA. Two ticks were positive.
Tarragona, Evelina Luisa, Cicuttin, Gabriel L., Mangold, Atilio Jose, Mastropaolo, Mariano, de Salvo, María Nazarena, Nava, Santiago   +5 more
openaire   +4 more sources