Results 61 to 70 of about 1,944 (155)

Physiological Age Structure and Leishmania spp. Detection in Phlebotomus (Larroussius) orientalis (Parrot, 1936) (Diptera: Psychodidae) at an Endemic Focus of Visceral Leishmaniasis in Northern Ethiopia

Journal of Tropical Medicine, Volume 2015, Issue 1, 2015., 2015
Visceral leishmaniasis (VL) caused by Leishmania donovani is endemic in northern Ethiopia, where P. orientalis is the most important presumed vector. This study was designed to determine the physiological age structure and the occurrence of Leishmania infection in the vector of VL in Tahtay Adiyabo district, northern Ethiopia. Sand flies were collected
Araya Gebresilassie, Ibrahim Abbasi, Oscar David Kirstein, Essayas Aklilu, Solomon Yared, Habte Tekie, Meshesha Balkew, Alon Warburg, Asrat Hailu, Teshome Gebre-Michael, Shyam Sundar   +10 more
wiley   +1 more source

Infectiousness in a Cohort of Brazilian Dogs: Why Culling Fails to Control Visceral Leishmaniasis in Areas of High Transmission [PDF]

, 2002
The elimination of seropositive dogs in Brazil has been used to control zoonotic visceral leishmaniasis but with little success. To elucidate the reasons for this, the infectiousness of 50 sentinel dogs exposed to natural Leishmania chagasi infection was
Courtenay, O., Dye, C., Garcez, L.M., Quinnell, R.J., Shaw, J.J.   +4 more
core  

CD8+ T Cell‐Mediated Immunity during Trypanosoma cruzi Infection: A Path for Vaccine Development?

Mediators of Inflammation, Volume 2014, Issue 1, 2014., 2014
MHC‐restricted CD8+ T cells are important during infection with the intracellular protozoan parasite Trypanosoma cruzi, the causative agent of Chagas disease. Experimental studies performed in the past 25 years have elucidated a number of features related to the immune response mediated by these T cells, which are important for establishing the ...
Fernando dos Santos Virgilio, Camila Pontes, Mariana Ribeiro Dominguez, Jonatan Ersching, Mauricio Martins Rodrigues, José Ronnie Vasconcelos, Edecio Cunha-Neto   +6 more
wiley   +1 more source

Within-host temporal fluctuations of Trypanosoma cruzi discrete typing units: the case of the wild reservoir rodent Octodon degus

Parasites & Vectors, 2017
Background Chagas disease caused by Trypanosoma cruzi is considered a major public health problem in America. After an acute phase the disease changes to a chronic phase with very low parasitemia. The parasite presents high genetic variability with seven
Gemma Rojo, Alejandra Sandoval-Rodríguez, Angélica López, Sylvia Ortiz, Juana P. Correa, Miguel Saavedra, Carezza Botto-Mahan, Pedro E. Cattan, Aldo Solari   +8 more
doaj   +1 more source

The skin is a significant but overlooked anatomical reservoir for vector-borne African trypanosomes [PDF]

, 2016
International audienceThe role of mammalian skin in harbouring and transmitting arthropod-borne protozoan parasites has been overlooked for decades as these pathogens have been regarded primarily as blood-dwelling organisms. Intriguingly, infections with
Bucheton, Bruno, Calvo-Alvarez, Estefania, Capewell, Paul, Cren-Travaillé, Christelle, Crouzols, Aline, Gorman, Taylor-Anne, Jammoneau, Vincent, Johnston, Pamela, Jouvion, Grégory, Kuispond Swar, Nono-Raymond, Macleod, Annette, Marchesi, Francesco, O 'Neill, Kerry, Rotureau, Brice, Weir, William   +14 more
core   +4 more sources

Multi-Method Evidence of Trypanosoma cruzi Infection in Wild European Rabbits in Chile: Implications for Reservoir Ecology and Surveillance

Zoonotic Diseases
Chagas disease, caused by Trypanosoma cruzi, is maintained in nature by complex interactions among wild vertebrates and triatomine insect vectors, yet the role of many introduced hosts remains poorly resolved. Here, we assessed natural T. cruzi infection
Nicol Quiroga, Antonella Bacigalupo, Esteban San Juan, Juana P. Correa, Gemma Rojo, Rodolfo Paredes, Aldo Solari, Christian Hidalgo, Carezza Botto-Mahan   +8 more
doaj   +1 more source

Experimental evaluation of xenodiagnosis to detect trypanosomes at low parasitaemia levels in infected hosts

Parasite, 2011
In Human African Trypanosomosis (HAT) endemic areas, there are a number of subjects that are positive to serological tests but in whom trypanosomes are difficult to detect with the available parasitological tests.
Wombou Toukam C.M., Solano P., Bengaly Z., Jamonneau V., Bucheton B.   +4 more
doaj   +1 more source

VISCERAL LEISHMANIASIS -HIV COINFECTED PATIENTS ARE HIGHLY INFECTIOUS TO SAND FLIES IN ENDEMIC AREA OF BIHAR, INDIA

International Journal of Infectious Diseases, 2023
Intro: Visceral leishmaniasis (VL) is a fatal form of leishmaniasis caused by protozoan parasite Leishmania donovani and transmitted by the bites of blood sucking vector sand fly Phlebotomous argentipes.
O.P. Singh, R. Chaubey, A.K. Kushwaha, M. Fay, D. Sacks, S. Sundar   +5 more
doaj   +1 more source

Evaluation of C3H/HeJ Mice for Xenodiagnosis of Infection with Ehrlichia Chaffeensis [PDF]

Journal of Veterinary Diagnostic Investigation, 1999
Because mice are experimentally susceptible to infection with Ehrlichia species, C3H/HeJmice were evaluated as a potential xenodiagnostic model for detection of infection with and isolation of E. chaffeensis. Intraperitoneal inoculation of mice with E.
J M, Lockhart, W R, Davidson
openaire   +2 more sources

Heterogeneities in the Ecoepidemiology of Trypanosoma cruzi Infection in Rural Communities of the Argentinean Chaco [PDF]

, 2014
We conducted a cross-sectional survey of Trypanosoma cruzi infection of Triatoma infestans as well as dogs and cats in 327 households from a well-defined rural area in northeastern Argentina to test whether the household distribution of infection ...
Alvarado Otegui, Julián Antonio, Cardinal, Marta Victoria, Ceballos, Leonardo A., Enriquez, Gustavo Fabián, Gaspe, Maria Sol, Gurevitz, Juan Manuel, Gurtler, Ricardo Esteban, Kitron, Uriel, Orozco, Maria Marcela   +8 more
core   +1 more source