Results 131 to 140 of about 8,182 (169)

Crude saliva of Amblyomma cajennense sensu stricto (Acari: Ixodidae) reduces locomotor activity and increases the hemocyte number in the females of Aedes aegypti (Diptera: Culicidae).

Experimental parasitology, 2023
Aedes aegypti are vector insects of arboviruses such as dengue, Zika, and chikungunya. All available vector control methods have limited efficacy, highlighting the urgent need to find alternative ones. Evidence shows that arachnids like ticks are sources
F. Cerri, M. S. Araújo, A. A. R. Aguirre, G. Evaristo, J. Evaristo, F. Nogueira, Jansen Fernandes de Medeiros, Quintino Moura Dias   +7 more
semanticscholar   +1 more source

Amblyomma cajennense

CABI Compendium, 2022
This datasheet on Amblyomma cajennense covers Identity, Distribution, Hosts/Species Affected.

semanticscholar   +1 more source

Coxiella Symbionts in the Cayenne Tick Amblyomma cajennense

Microbial Ecology, 2011
Members of the Coxiella genus are intracellular bacteria that can infect a variety of animals including humans. A symbiotic Coxiella was recently described in Amblyomma americanum ticks in the Northern Hemisphere with no further investigations of other Amblyomma species in other geographic regions.
Erik, Machado-Ferreira, Gabrielle, Dietrich, Andrias, Hojgaard, Michael, Levin, Joseph, Piesman, Nordin S, Zeidner, Carlos A G, Soares   +6 more
openaire   +2 more sources

Gynandromorphism in Amblyomma cajennense and Rhipicephalus sanguineus (Acari: Ixodidae)

The Journal of Parasitology, 2002
During a survey of ticks on horses in November 2000, at the University of São Paulo farm in Pirassununga county, São Paulo, Brazil, 1 gynandromorph of Amblyomma cajennense was collected from a naturally infested horse. In another survey on dogs in March 2001, in the urban area of Monte Negro, Rondônia, Brazil, a gynandromorph of Rhipicephalus ...
M B, Labruna, A F, Ribeiro, M V, Cruz, L M A, Camargo, E P, Camargo   +4 more
openaire   +2 more sources

Acquired resistance of horses to Amblyomma cajennense (Fabricius, 1787) ticks

Veterinary Parasitology, 2003
Acquired immunity of horses to larvae, nymphs and adults of the Amblyomma cajennense tick was evaluated through three consecutive experimental infestations of tick-bite naïve hosts. Data from these infestations were compared to those from field-sensitized horses and donkeys.
Castagnolli, K. C., de Figueiredo, L. B., Santana, D. A., de Castro, M. B., Romano, M. A., Szabo, MPJ   +5 more
openaire   +3 more sources

Amblyomma cajennense ticks induce immediate hypersensitivity in horses and donkeys

Experimental & Applied Acarology, 2004
Since host immune reaction to ticks interferes with tick-borne pathogen transmission, it is important to recognize naturally occurring tick-host immune relationships to better understand the epidemiology of such infectious diseases. Amblyomma cajennense is an important tick-borne disease vector in the Neotropical region and horses maintain it in ...
Pablo Juan Szabó, Matias, Carrão Castagnolli, Karina, Álvaro Santana, Danilo, Botelho de Castro, Márcio, Aurélio Romano, Marco   +4 more
openaire   +3 more sources

Impact of climate change on the geographical distribution of ticks of public health significance in Colombia: Amblyomma ovale (Ixodida: Ixodidae), the Amblyomma maculatum (Ixodida: Ixodidae) complex and the Amblyomma cajennense (Ixodida: Ixodidae) complex

Journal of medical entomology
Ticks of the Amblyomma maculatum (Ixodida Ixodidae) complex, the Amblyomma cajennense (Ixodida Ixodidae) complex and Amblyomma ovale (Ixodida Ixodidae) are known to transmit various Rickettsia species in Colombia, but their exact distribution is unknown.
Gina Polo, J. Gamarra, L. Robayo-Sánchez, J. A. Cortés-Vecino, Alejandro Ramírez-Hernández   +4 more
semanticscholar   +1 more source

Seasonal dynamics of the Cayenne tick, Amblyomma cajennense on horses in Brazil

Medical and Veterinary Entomology, 2003
Abstract.  The population dynamics of all stages of the Cayenne tick, Amblyomma cajennense (Fabricius) (Acari: Ixodidae) on horses was evaluated over a period of 2 years in the district of Pedro Leopoldo, State of Minas Gerais, Brazil.
P R, Oliveira, L M F, Borges, R C, Leite, C M V, Freitas   +3 more
openaire   +2 more sources

Acaricidal activity of thymol on larvae and nymphs of Amblyomma cajennense (Acari: Ixodidae)

Veterinary Parasitology, 2011
The aim of the present study was to evaluate the acaricidal efficacy of thymol on unengorged and engorged larvae and engorged nymphs of Amblyomma cajennense. To perform the test for unengorged larvae, the larval packet technique was employed and mortality was evaluated 24h after the test, while for engorged larvae and engorged nymphs the immersion ...
Andressa da Silva, Mendes, Erik, Daemon, Caio Márcio de Oliveira, Monteiro, Ralph, Maturano, Fernanda Calmon, Brito, Tainara, Massoni   +5 more
openaire   +2 more sources

Salivary glands of Amblyomma cajennense (Acari: Ixodidae): a histological and an ultrastructural overview

Experimental and Applied Acarology, 2011
The present study on the salivary glands of semi-engorged Amblyomma cajennense females has identified the various cell types present in this tissue and allowed its morphohistochemical characterization. Marking techniques were applied to detect polysaccharides (PAS), proteins (bromophenol blue), lipids (Nile blue) and calcium (von Kossa), as well as ...
Denardi, Sandra Eloisi, Scopinho Furquim, Karim Christina, Bechara, Gervasio Henrique, Camargo-Mathias, Maria Izabel   +3 more
openaire   +3 more sources