Results 91 to 100 of about 10,174 (231)

Soroprevalência de Rickettsia bellii e Rickettsia felis em cães, São José dos Pinhais, Paraná, Brasil [PDF]

, 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.
BIONDO, Alexander Welker, BONACIM, José Edivaldo, FORTES, Fernanda Silva, LABRUNA, Marcelo Bahia, LEITE, Ronaldo Viana, MOLENTO, Marcelo Beltrão, MORAES-FILHO, Jonas, SILVEIRA, Iara   +7 more
core   +2 more sources

Artificial Feeding of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) through Silicone Membrane [PDF]

Memórias do Instituto Oswaldo Cruz, 1997
An artificial feeding system was used where citrated bovine blood was offered to male and female Amblyomma cajennense. Vestiges of blood, sweat, hair and exfoliated skin were used as phago-stimulants placed on the surface of the silicone membrane. The ticks were collected, as engorged nymphs, from naturally infested equines, with the ecdysis occurring ...
Saulo Teixeira de Moura, Adivaldo Henrique da Fonseca, Claudia Gorgulho Nogueira Fernandes, Jerry F. Butler   +3 more
openaire   +3 more sources

Metodologia para o estudo da porotaxia em larvas de carrapatos Ixodidae. [PDF]

, 2011
A determinação específica do estágio larval dos ixodídeos tem sido um imenso problema para a sistemática nos últimos anos. Este trabalho visa a elaboração de uma metodologia de descrição de nomenclatura para as larvas de Ixodidae.bitstream/item/24724/1 ...
BARBIERI, F. da S., BARROS-BATTESTI, D. M., BRITO, L. G., CAMARGO, L. M. A., FACCINI, J. L., FAMADAS, K. M., LABRUNA, M. B.   +6 more
core  

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 ...
Hlatshwayo, M., Szaboó, M. J.P., Bechara, G. H., Mbati, P. A.   +3 more
openaire   +4 more sources

Acquisitions nouvelles dans la connaissance du rôle vecteur de tiques du genre Amblyomma (Ixodidae) [PDF]

, 1983
La tique ouest-africaine Amblyomma astrion a transmis de façon transstadiale les protozoaires Theileria mutons et Theileria velifera. Des larves de cette tique, infectées de la rickettsie Cowdria ruminantium, ont transmis l'infection dans une seule ...
Uilenberg, Gerrit
core  

Rickettsiae-infected Ticks in an Endemic Area of Spotted Fever in the State of Minas Gerais, Brazil

Memorias do Instituto Oswaldo Cruz, 1997
A study on tick-borne rickettsiosis was developed in the county of Santa Cruz do Escalvado, State of Minas Gerais, Brazil, where a clinical case of the disease, confirmed by necropsy, had been reported. Of the 1,254 ticks collected, 1,061 belonged to the
Elba Regina Sampaio de Lemos, Raimundo Diogo Machado, Fernando Dias de Ávila Pires, Sérgio Lisboa Machado, Lígia Maria Cantarino da Costa, José Rodrigues Coura   +5 more
doaj   +1 more source

A new Factor Xa inhibitor from Amblyomma cajennense with a unique domain composition

Archives of Biochemistry and Biophysics, 2010
Bioactive compounds of great interest are found in the saliva of hematophagous organisms. While exploring a cDNA library derived from the salivary glands of the tick Amblyomma cajennense, a transcript that codes for a protein with unique structure (containing an N-terminal Kunitz-type domain and a C-terminus with no homology to any annotated sequences)
I F C, Batista, O H P, Ramos, J S, Ventura, I L M, Junqueira-de-Azevedo, P L, Ho, A M, Chudzinski-Tavassi   +5 more
openaire   +2 more sources

Porotaxia em larvas de Anocentor nitens e Haemaphysalis leporispalustris. [PDF]

, 2011
Estruturas tegumentares de larvas de Anocentor nitens e Haemaphysalis leporispalustris foram estudadas por microscopia óptica. Três tipos de estruturas tegumentares foram identificadas nas larvas das duas espécies: lirifissuras, pequenas glândulas e ...
BARBIERI, F. da S., BRITO, L. G., CAMARGO, L. M. A., LABRUNA, M. B.   +3 more
core  

Rickettsia amblyommii infecting Amblyomma sculptum in endemic spotted fever area from southeastern Brazil

Memorias do Instituto Oswaldo Cruz, 2015
The Rickettsia bacteria include the aetiological agents for the human spotted fever (SF) disease. In the present study, a SF groupRickettsia amblyommii related bacterium was detected in a field collected Amblyomma sculptum (Amblyomma cajennense species ...
Emília de Carvalho Nunes, Vinicius Figueiredo Vizzoni, Daniel Leal Navarro, Felipe Campos de Melo Iani, Liliane Silva Durães, Erik Daemon, Carlos Augusto Gomes Soares, Gilberto Salles Gazeta   +7 more
doaj   +1 more source

Rickettsioses in Latin America, Caribbean, Spain and Portugal [PDF]

, 2011
Data on genus and infectious by Rickettsia were retrospectively compiled from the critical review literature regarding all countries in Latin America, Caribbean islands, Portugal and Spain.
Abarca, Katia, Bermudez, Sergio, De Sousa, Rita, Dolz, Gaby, Labruna, Marcelo B., Mattar V, Salim, Nava, Santiago, Oteo, Jose, Romero, Luis, Venzal, Jose M., Zavala-Castro, Jorge   +10 more
core   +1 more source