Results 91 to 100 of about 1,553 (178)

Detection of Rickettsia rickettsii in the tick Amblyomma cajennense in a new Brazilian spotted fever-endemic area in the state of Minas Gerais

Memorias do Instituto Oswaldo Cruz, 2005
The present study evaluated rickettsial infection in Amblyomma spp. ticks collected in a farm in Coronel Pacheco, a Brazilian spotted fever (BSF) endemic area. A total of 78 A. cajennense and 78 A.
Elizângela Guedes, Romário C Leite, Márcia CA Prata, Richard C Pacheco, David H Walker, Marcelo B Labruna   +5 more
doaj   +1 more source

Seasonal dynamics of Amblyomma cajennense (Fabricius, 1787) sensu stricto in a degraded area of the Amazon biome, with notes on Rickettsia amblyommatis infection. [PDF]

Parasit Vectors, 2023
de Araújo FES, Martins TF, Ramos CCM, Nogueira RMS, Faccini JLH, Tavares MA, de Lima NJ, de Almeida Júnior EB, de Sousa-Paula LC, Dantas-Torres F, da Silva Krawczak F, Costa-Junior LM, Labruna MB, Dall Agnol LT, Luz HR.   +14 more
europepmc   +1 more source

Babesia spp. infection in dogs from rural areas of São Paulo State, Brazil Infecção por Babesia spp. em cães de áreas rurais do estado de São Paulo, Brasil

Revista Brasileira de Parasitologia Veterinária, 2009
The status of Babesia spp. infection in dogs from rural areas of São Paulo State, Brazil was studied. For this, 150 animals were examined by blood smears and by PCR; the presence of tick infestation was also investigated.
Lucia Helena O'Dwyer, Viviane Von Ah Lopes, Adriano Stefani Rubini, Karina Dos Santos Paduan, Paulo Eduardo Martins Ribolla   +4 more
doaj   +1 more source

Ticks on birds in a savanna (Cerrado) reserve on the outskirts of Uberlândia, Minas Gerais, Brazil Carrapatos em aves de uma reserva do Cerrado na periferia de Uberlândia, Minas Gerais, Brasil

Revista Brasileira de Parasitologia Veterinária, 2013
We report tick infestations on birds, in the environment and on domestic animals in a non-forested phytophysiognomy, the savanna-like Cerrado sensu stricto, in a natural reserve on the outskirts of the urban area of Uberlândia, Minas Gerais, Brazil.
Jamile de Oliveira Pascoal, Marcus do Prado Amorim, Maria Marlene Martins, Celine Melo, Eurípedes Luciano da Silva Júnior, Maria Ogrzewalska, Marcelo Bahia Labruna, Matias Pablo Juan Szabó   +7 more
doaj  

Dichotomous key to larvae of the genus Amblyomma (Parasitiformes: Ixodidae) in Brazil, with morphological description and redescription of the larval stage of 30 Amblyomma species

Ticks and Tick-Borne Diseases
Ticks of the genus Amblyomma are of great medical and veterinary importance in Brazil, where they regularly parasitize wild and domestic animals and will bite humans that enter rural and forest areas for work and recreation purposes.
Thiago F. Martins, Adriano Pinter, Vera L.F. de Camargo-Neves, Agustín Estrada-Peña, Pablo H. Nunes, Fábio Barbieri, Kátia M. Famadas, Marcelo B. Labruna   +7 more
doaj   +1 more source

Biological parameters of larvae, nymphs, and engorged females of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) obtained from artificial and successive infestations on Oryctolagus cuniculus (Linnaeus, 1758) (Lagomorpha: Ochotonidae) Parâmetros biológicos de larvas, ninfas e fêmeas ingurgitadas de Amblyomma cajennense (Fabricius, 1787) (Acari:Ixodidae) obtidas de infestações artificiais e sucessivas em Oryctolagus cuniculus (Lagomorpha:Ochotonidae)

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2009
The development of acquired resistance to Amblyomma cajennense ticks was evaluated. A total of 18 rabbits were uniformly distributed into three groups named GL, GN, and GA that were submitted to three consecutive infestations with, respectively, larvae ...
C.M.V. Freitas, R.C. Leite, P.R. Oliveira, F.C. Fernández   +3 more
doaj   +1 more source

Toxic action of Acmella oleracea extract on the Amblyomma cajennense (Acari: ixodidae) male reproductive system. [PDF]

, 2019
The present study evaluated through morphohistological and histochemical techniques the effects of different concentrations of crude ethanolic extract of A. oleracea (EEAO) (Jambu) on the male reproductive system of Amblyomma cajennense s.s. ticks.
OLIVEIRA, P. R., YAMANE, L. T., ANHOLETO, L. A., RODRIGUES, R. A. F., CASTRO, K. N. de C., CAMARGO-MATHIAS, M. I.   +5 more
core  

Amblyomma cajennense (fabricius, 1787) (Acari: ixodidae) en los Estados Aragua y Cojedes, Venezuela

Revista Científica, 2010
El objetivo de la presente comunicación es la de señalar por primera vez la presencia de Amblyomma cajennense en los estados Aragua y Cojedes. La muestra procesada e identificada estuvo representada por 14 ejemplares de la garrapata: seis de ellas ...
Elena Moissant de Román, Roland Klober, Jesús Manzanilla   +2 more
doaj  

Ixodidas brasileiros e de alguns paizes limitrophes

Memorias do Instituto Oswaldo Cruz, 1936
The knowledge of the Ixodidae becomes every day, more and more important owing to the fact of the increasing number of diseases of man and animals they can transmit.
Henrique de Beaurepaire Aragão
doaj   +1 more source

Estudo de Populações de Amblyomma cajennense e Amblyomma dubitatum (Acari:Ixodidae) e pesquisa de Rickettsia spp. nestas espécies em Coronel Pacheco, Minas Gerais [PDF]

, 2009
Owing to the importance of Amblyomma cajennense and Amblyomma dubitatum in the epidemiology of Brazilian Spotted Fever (BSF), this study evaluated the flutuation of populations of the free-living and parasitic these two species of the ticks, as well the ...
Elizangela Guedes
core