Results 101 to 110 of about 1,553 (178)

Study of infection by Rickettsiae of the spotted fever group in humans and ticks in an urban park located in the City of Londrina, State of Paraná, Brazil

Revista da Sociedade Brasileira de Medicina Tropical, 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.
Roberta Santos Toledo, Katia Tamekuni, Mauro de Freitas Silva Filho, Valeska Bender Haydu, Richard Campos Pacheco, Marcelo Bahia Labruna, John Stephen Dumler, Odilon Vidotto   +7 more
doaj   +1 more source

Ritmo de queda dos carrapatos Amblyomma cajennense, Amblyomma parvum, e Rhipicephalus sanguineus de hospedeiros experimentais [PDF]

, 2013
Tick is the main vector of infectious diseases to animals and is an important vector to humans as well. Tick drop-off rhythm from hosts defines host distribution in the environment and thus is part of the epidemiology of tick-borne diseases.
Silva, Tathiane de Lima
core  

[Survey of Rickettsia spp in the ticks Amblyomma cajennense and Amblyomma dubitatum in the State of São Paulo].

Revista da Sociedade Brasileira de Medicina Tropical, 2009
The presence of rickettsial infection was surveyed in 3,545 Amblyomma cajennense ticks and 2,666 Amblyomma dubitatum ticks. Using the hemolymph test, polymerase chain reaction and isolation of Rickettsia in cell cultures, all of the Amblyomma cajennense were negative, whereas 634 (23.8%) of the Amblyomma dubitatum ticks were shown to be infected with ...
Richard Campos, Pacheco, Maurício Cláudio, Horta, Adriano, Pinter, Jonas, Moraes-Filho, Thiago Fernandes, Martins, Marcello Schiavo, Nardi, Savina Silvana Aparecida Lacerra de, Souza, Celso Eduardo de, Souza, Matias Pablo Juan, Szabó, Leonardo José, Richtzenhain, Marcelo Bahia, Labruna   +10 more
openaire   +1 more source

Possibilidade de ocorrência de resistência adquirida em cães sucessivamente infestados por ninfas de Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) Possible acquired resistance of dogs successively infested by Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) nymphs

, 2009
O presente trabalho teve por objetivo avaliar a ocorrência de resistência imune em cães, frente a infestações sucessivas por ninfas de Amblyomma cajennense.
Carolina Maria Vianna de Freitas, Ana Cristina Passos de Paiva Belo, Arildo Pinto da Cunha, Romário Cerqueira Leite, Eduardo Bastianetto   +4 more
core   +1 more source

Amblyomma sculptum Berlese 1888

, 2020
112. Amblyomma sculptum Berlese, 1888. A Neotropical species whose adults and nymphs are usually found on Mammalia (several orders). All parasitic stages, including the undescribed larva, have been collected from Artiodactyla: Bovidae, Carnivora ...
Robbins, Richard G., Guglielmone, Alberto A., Petney, Trevor N.   +2 more
core   +1 more source

Comparative survival of the engorged stages of Amblyomma cajennense sensu stricto and Amblyomma sculptum under different laboratory conditions

Ticks and Tick-borne Diseases, 2018
Recent studies indicated that the taxon Amblyomma cajennense (Fabricius, 1787) is a complex of 6 valid species, of which only two, Amblyomma cajennense sensu stricto (s.s.) and Amblyomma sculptum Berlese, 1888 are present in Brazil; the former species is found exclusively in areas of the Amazon biome, and A.
openaire   +2 more sources

Genetic Structure of Amblyomma Cajennense (Acari: Ixodidae) Populations Based on Mitochondrial Gene Sequences

, 2009
Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) is a common tick species that has a large geographic distribution from the southern regions of the United States (Texas), to the Caribbean Islands, Central, and South America.
Burkman, Erica Janelle
core  

Amblyomma mixtum Koch, 1844 (Acari: Ixodidae): First record confirmation in Colombia using morphological and molecular analyses

, 2016
Up to some years ago, the taxon Amblyomma cajennense represented a single tick species in the New World, from southern United States to northern Argentina.
Labruna, Marcelo B., Sampieri, Bruno Rodrigues, Camargo-Mathias, Maria I., Rivera-Páez, Fredy A., Martins, Thiago F., Sampieri, Bruno Rodrigues [UNESP], Rivera-Páez, Fredy A. [UNESP], Camargo-Mathias, Maria I. [UNESP]   +7 more
core   +1 more source

Study of infection by Rickettsiae of the spotted fever group in humans and ticks in an urban park located in the City of Londrina, State of Paraná, Brazil 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

Revista da Sociedade Brasileira de Medicina Tropical, 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.
Roberta Santos Toledo, Katia Tamekuni, Mauro de Freitas Silva Filho, Valeska Bender Haydu, Richard Campos Pacheco, Marcelo Bahia Labruna, John Stephen Dumler, Odilon Vidotto   +7 more
doaj  

Environmental infestation and rickettsial infection in ticks in an area endemic for Brazilian spotted fever

Revista Brasileira de Parasitologia Veterinária
Brazilian spotted fever (BSF), caused by Rickettsia rickettsii, is endemic in the municipality of Americana, southeastern Brazil, where the disease is transmitted by the tickAmblyomma cajennense.
José Brites-Neto, Fernanda Aparecida Nieri-Bastos, Jardel Brasil, Keila Maria Roncato Duarte, Thiago Fernandes Martins, Cecília José Veríssimo, Amália Regina Mar Barbieri, Marcelo Bahia Labruna   +7 more
doaj   +1 more source