Results 51 to 60 of about 23,689 (272)

Feeding and defecation behavior of Triatoma rubida (Uhler, 1894) (Hemiptera: Reduviidae) under laboratory conditions, and its potential role as a vector of chagas disease in Arizona, USA [PDF]

, 2011
Chagas disease is caused by the parasite Trypanosoma cruzi, which is transmitted to humans by blood-sucking triatomine insects. This disease is endemic throughout Mexico and Central and South America, but only a few autochthonous cases have been reported
Gregory, Teresa, Guerenstein, Pablo Gustavo, Hildebrand, John, Reisenman, Carolina Esther   +3 more
core   +1 more source

Secondary Kill Effect of Deltamethrin on Triatoma infestans [PDF]

Journal of Medical Entomology, 2011
Control of the Chagas disease vector, Triatoma infestans, relies on the application of pyrethroid insecticides, especially deltamethrin. We performed laboratory studies to determine whether a T. infestans nymph that comes into contact with a deltamethrin-treated surface horizontally transfers the insecticide to subsequent triatomines.
Maloney, K.M., Ancca-Juarez, J., Salazar Sánchez, Renzo Sadath, Borrini-Mayori, K., Pamo-Tito, D., Keating, J.A., Levy, M.Z.   +6 more
openaire   +3 more sources

Molecular epidemiology of domestic and sylvatic Trypanosoma cruzi infection in rural northwestern Argentina [PDF]

, 2008
Genetic diversity of Trypanosoma cruzi populations and parasite transmission dynamics have been well documented throughout the Americas, but few studies have been conducted in the Gran Chaco ecoregion, one of the most highly endemic areas for Chagas ...
Cardinal, Marta Victoria, Ceballos, Leonardo A., Gurtler, Ricardo Esteban, Kitron, Uriel D., Lanati, Leonardo, Lauricella, Marta A., Levin, Mariano Jorge, Marcet, Paula Lorena, Schijman, Alejandro Gabriel   +8 more
core   +1 more source

Temporal change of the aggregation response in Triatoma infestans [PDF]

Memórias do Instituto Oswaldo Cruz, 2000
Adults and larvae of Triatoma infestans spend daylight hours assembled in shaded places. An assembling factor has been demonstrated in the excrement of this species. We analysed different aspects of the dynamics of the response of bugs. Recently fed insects do not aggregate around faeces.
Alicia Nieves Lorenzo Figueiras, Claudio Ricardo Lazzari   +1 more
openaire   +5 more sources

Patterns of antenal sensilla of Panstrongylus megistus from three Brazilian states [PDF]

, 2005
The objective of the present study was to analyze and describe the phenotype of the antennal sensilla of Panstrongylus megistus, one of the epidemiologically most important species of triatomines in Brazil.
Catala, Silvia Susana, Dias, J. C. P., Juberg, J., Silva, I. G., Villela, M. M.   +4 more
core   +1 more source

Discrete typing units of Trypanosoma cruzi identified in rural dogs and cats in the humid Argentinean Chaco [PDF]

, 2012
The discrete typing units (DTUs) of Trypanosoma cruzi that infect domestic dogs and cats have rarely been studied. With this purpose we conducted a cross-sectional xenodiagnostic survey of dog and cat populations residing in 2 infested rural villages in ...
Cardinal, Marta Victoria, Enriquez, Gustavo Fabián, Gurtler, Ricardo Esteban, Lanati, L., Orozco, Maria Marcela, Schijman, Alejandro Gabriel   +5 more
core   +1 more source

Marcação de ovos de Triatoma infestans, com diversos corantes Techinique to mark Triatoma infestans eggs with several dyestuffs

Revista de Saúde Pública, 1971
Os autores descrevem uma técnica para marcação de ovos de T. infestans, utilizando-se de corantes.The authors present a technique which employes dyestuffs to mark T. infestans eggs.
Edmundo Juarez, Eunice Pinho de Castro e Silva, Sérgio Miguel Zucas   +2 more
doaj   +1 more source

Novo procedimento de xenodiagnóstico na forma crônica da doença de Chagas New xenodiagnostic procedure in chronic Chagas' disease

Memorias do Instituto Oswaldo Cruz, 1976
Xenodiagnósticos feitos com Triatoma infestans durante 24 horas consecutivas, a intervalos de duas horas, demonstraram o Trypanosoma cruzi em 9 de 10 pacientes suspeitos de infecção chagástica crônica.Positive xenodiagnostic was obtained in 9 out of 10 ...
Saulo P. Almeida, Ítalo A. Sherlock, E. Edvaldo Fahel   +2 more
doaj   +1 more source

Dispersal of Triatoma infestans and other Triatominae species in the arid Chaco of Argentina: Flying, walking or passive carriage? The importance of walking females

Memorias do Instituto Oswaldo Cruz, 2011
The aim of this paper was to analyse the active dispersal of Triatoma infestans and the role of chickens as passive carriers of this insect in peridomestic areas of La Rioja, Argentina.
Luciana Beatriz Abrahan, David Eladio Gorla, Silvia Susana Catalá   +2 more
doaj   +1 more source

Chromosome complement and meiosis in three species of the Neotropical bug genus Antiteuchus (Heteroptera, Pentatomidae, Discocephalinae) [PDF]

, 2006
Orcein staining of spermatocytes was used to study the meiotic behavior of holocentric chromosomes in three member of the genus Antiteuchus (commonly known as stink bugs). We describe and illustrate the karyotype of Antiteuchus mixtus, A. sepulcralis and
de Souza, Maria José, Lanzone, Cecilia
core   +2 more sources