Results 11 to 20 of about 7,677 (151)

Natural infestation of Hydrochoerus hydrochaeris by Amblyomma dubitatum ticks [PDF]

Experimental and Applied Acarology, 2014
Natural infestation of Amblyomma dubitatum in relation to individual specific attributes of Hydrochoerus hydrochaeris such as sex, body mass and body condition was analyzed. The anatomical distribution of A. dubitatum on H. hyrochaeris was also evaluated. Prevalence of adults and nymphs were significantly higher than prevalence of larvae.
Atilio J Mangold, , Mangold Atilio J
exaly   +6 more sources

Hosts, distribution and genetic divergence (16S rDNA) of Amblyomma dubitatum (Acari: Ixodidae) [PDF]

Experimental and Applied Acarology, 2010
We supply information about hosts and distribution of Amblyomma dubitatum. In addition, we carry out an analysis of genetic divergence among specimens of A. dubitatum from different localities and with respect to other Neotropical Amblyomma species, using sequences of 16S rDNA gene. Although specimens of A.
, JOSÉ M Venzal, Marcelo B Labruna
exaly   +6 more sources

Amblyomma dubitatum Neumann 1899

Vector-Borne and Zoonotic Diseases, 2020
Published as part of Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, pp.
Guglielmone, Alberto A., Nava, Santiago, Robbins, Richard G.   +2 more
core   +7 more sources

Pesquisa de Rickettsia spp em carrapatos Amblyomma cajennense e Amblyomma dubitatum no Estado de São Paulo [PDF]

Revista Da Sociedade Brasileira De Medicina Tropical, 2009
Foi pesquisada a presença de riquétsias em 3.545 carrapatos Amblyomma cajennense e 2.666 Amblyomma dubitatum. Através do teste de hemolinfa, reação em cadeia pela polimerase e isolamento de rickettsia em cultivo celular, todos os Amblyomma cajennense foram negativos, sendo que 634 (23,8%) Amblyomma dubitatum mostraram-se infectados com Rickettsia ...
Richard C Pacheco, Adriano Pintér, Jonas Moraes-Filho   +2 more
exaly   +5 more sources

Ticks in wild animals at a resort and the first documentation of Amblyomma sculptum infesting Emu (Dromaius novaehollandiae)

Revista Brasileira de Parasitologia Veterinária, 2019
The study aimed to identify species of ticks present in the environment and among captive animals, in Mangaratiba, Rio de Janeiro, Brazil. Ticks were isolated from captive animals by manual examination and free-living ticks in the environment were ...
Izabela Mesquita Araújo, Paulo Cesar Magalhães-Matos, Matheus Dias Cordeiro, Adlilton Pacheco, Bruno Silva Rocha, Luis Felipe Barbosa Braga Feitoza, Argemiro Sanavria, Adivaldo Henrique Fonseca   +7 more
doaj   +5 more sources

Comparative survival of the engorged stages of Amblyomma dubitatum and Amblyomma sculptum in the laboratory: Implications for Brazilian spotted fever epidemiology

Ticks and Tick-borne Diseases, 2020
Brazilian spotted fever (BSF), caused by the bacterium Rickettsia rickettsii, is transmitted to humans mainly by the tick Amblyomma sculptum in southeastern Brazil. In most BSF-endemic areas A. sculptum populations are sustained chiefly by capybaras (Hydrochoerus hydrochaeris), which are also the host of another tick species, Amblyomma dubitatum, not ...
Hermes R Luz, Alejandro Ramírez-Hernández, Hector R Benatti   +2 more
exaly   +4 more sources

Rabbits (Oryctolagus cuniculus) as experimental hosts for Amblyomma dubitatum Neumann (Acari: Ixodidae)

Arquivo Brasileiro De Medicina Veterinaria E Zootecnia, 2006
O ciclo biologico do Amblyomma dubitatum, que se alimentava experimentalmente em coelhos domesticos, foi avaliado em condicoes laboratoriais e comparado com dados recentemente obtidos de infestacoes experimentais em capivaras (Hydrochaeris hydrochaeris), hospedeiros naturais para essa especie.
Marcelo B Labruna, Labruna M B
exaly   +5 more sources

A novel Rickettsia infecting Amblyomma dubitatum ticks in Brazil

Ticks and Tick-borne Diseases, 2011
A total of 130 adult free-living ticks of Amblyomma cajennense and 9 free-living Amblyomma dubitatum were collected in the surroundings of the Pampulha Lake, within Belo Horizonte city, state of Minas Gerais, south-eastern Brazil. Each adult tick was tested for rickettsial infection by PCR protocols targeting the rickettsial genes gltA, htrA, and ompA.
Marcelo B Labruna
exaly   +4 more sources

Effect of environmental variables on the abundance of Amblyomma ticks, potential vectors of Rickettsia parkeri in central Brazil. [PDF]

PLoS ONE
Amblyomma ticks are vectors of both Rickettsia rickettsii and R. parkeri in the Americas, where capybaras (Hydrochoerus hydrochaeris) are the main hosts in urban areas, thus contributing to the transmission of spotted fever.
Isadora R C Gomes, Rodrigo Gurgel-Gonçalves, Gilberto S Gazeta, Ana B P Borsoi, Karla Bitencourth, Letícia F Leite, Nathália G S S Coelho, Ricardo Dislich, Helga C Wiederhecker, Eduardo G Santos, Melina Guimarães   +10 more
doaj   +3 more sources

First molecular detection of Rickettsia parkeri in Amblyomma tigrinum and Amblyomma dubitatum ticks from Uruguay

Ticks and Tick-borne Diseases, 2014
Rickettsia parkei is the etiological agent of spotted fever in Uruguay, where is transmitted to humans by the tick Amblyomma triste. In the present study, ticks were collected from capybaras (Hydrochoerus hydrochaeris) and domestic dogs during 2011-2012 in different parts of Uruguay.
Paula Lado, Marcelo B Labruna, JOSÉ M Venzal   +2 more
exaly   +4 more sources