Introduction: Visceral leishmaniasis (VL) is a serious endemic disease in many tropical and subtropical countries, with a strong incidence in Brazil. The disease is transmitted by the bite of infected female phlebotomine sandflies, with dogs being the main urban reservoirs of the parasite. The diverse cl...
Leishmania infantum chagasi is the causative agent and Lutzomyia longipalpis is the main vector of visceral leishmaniasis in the Americas. We investigated the expression of Leishmania genes within L. longipalpis after artificial infection. mRNAs from genes involved in sugar and amino acid metabolism were...
Brasil,
Expresión Génica,
Insectos Vectores/parasitología,
Leishmania/aislamiento & purificación,
Leishmania infantum/genética,
Leishmaniasis Visceral/epidemiología,
Leishmaniasis Visceral/parasitología,
Leishmaniasis Visceral/transmisión,
Estadios del Ciclo de Vida,
Psychodidae/genética,
Psychodidae/parasitología,
Reacción en Cadena de la Polimerasa de Transcriptasa Inversa/métodos
To diagnose dogs infected by Leishmania infantum rK39 rapid diagnosis test is widely used in the Americas, while dual path platform (DPP) was recently adopted by Brazil. In this study we assessed the performance of rK39-RDT and DPP tests in recent urban transmission scenarios of Argentina. The sensitivit...
Abstract The main clinical, anatomopathological, and molecular aspects of the infection by Leishmania infantum are described in two cats with multicentric cutaneous, nodular, and ulcerated lesions. The animals were submitted to a clinical examination, followed by serological, molecular and parasitologica...
Anticuerpos Antiprotozoarios/sangre,
Brasil,
Enfermedades de los Gatos/diagnóstico,
ADN de Cinetoplasto/genética,
Eutanasia Animal,
Leishmania infantum/genética,
Leishmaniasis Visceral/diagnóstico,
Leishmaniasis Visceral/transmisión,
Leishmaniasis Visceral/veterinaria,
Macrófagos/parasitología,
Reacción en Cadena de la Polimerasa/veterinaria
Abstract Leishmania infantum infection in cats has been reported in several countries, including Brazil. However, the transmission of visceral leishmaniasis (VL) from cats to another host has not been proven yet. Therefore, the aim of this study was to verify the possibility of L. infantum transmission f...
Brasil,
Enfermedades de los Gatos/parasitología,
Enfermedades de los Gatos/transmisión,
ADN Protozoario/química,
Enfermedades de los Perros/parasitología,
Enfermedades de los Perros/transmisión,
Insectos Vectores/parasitología,
Leishmania infantum/genética,
Leishmaniasis Visceral/transmisión,
Leishmaniasis Visceral/veterinaria,
Psychodidae/parasitología
Abstract INTRODUCTION: This study aimed to investigate human exposure to Leishmania spp. infection and sandflies in an area endemic for the disease. METHODS: The presence of antibodies specific for Leishmania spp. and saliva of Lutzomyia spp. and that of L. infantum DNA in blood were evaluated. RESULT...
Brasil,
Ensayo de Inmunoadsorción Enzimática,
Insectos Vectores/parasitología,
Leishmania/genética,
Leishmania/inmunología,
Leishmania/aislamiento & purificación,
Leishmaniasis Visceral/epidemiología,
Leishmaniasis Visceral/transmisión,
Persona de Mediana Edad,
Reacción en Cadena de la Polimerasa,
Psychodidae/parasitología
Abstract INTRODUCTION: Leishmania infantum was considered to be absent from Amapá until 2017 when canine infection was detected. However, there is a lack of knowledge about which reservoir species are involved in transmission in this region. METHODS: Between 2014 and 2016, 86 samples from wild mammal...
Abstract Phlebotomines of the genus Lutzomyia are important vector for species of Leishmania, the etiological agent of leishmaniasis. The aim of this study was to assess the diversity of sandflies in an endemic area for Visceral Leishmaniasis (VL). Sampling was performed in four localities on the coast o...
Abstract Introduction: The study of the interaction between the parasite, the vector and the mammalian hosts, including man, allows to understand the behavior of the leishmaniases. Objective: To determine the presence of Lutzomyia species and to detect the Leishmania infection in Didelphis marsupialis ...
Didelphis,
Reservorios de Enfermedades/parasitología,
Insectos Vectores,
Leishmaniasis Visceral/epidemiología,
Psychodidae,
Sangre/parasitología,
Colombia/epidemiología,
Didelphis/parasitología,
Oído Externo/parasitología,
Enfermedades Endémicas,
Proteínas HSP70 de Choque Térmico/genética,
Vivienda,
Insectos Vectores/parasitología,
Leishmania/clasificación,
Leishmania/genética,
Leishmania/aislamiento & purificación,
Leishmaniasis Visceral/transmisión,
Psychodidae/parasitología,
Población Rural,
Especificidad de la Especie,
Cola (estructura animal)/parasitología
Abstract INTRODUCTION: Leishmaniasis is a complex vector-borne infectious diseases caused by protozoan parasites in the genus Leishmania and spread by hematophagous phlebotomine sand flies (Diptera: Psychodidae, Phlebotominae). The aim of this study was to investigate the phlebotomine fauna, endophily a...
Análisis de Varianza,
Distribución Animal,
Brasil,
Conservación de los Recursos Naturales,
Ecosistema,
Insectos Vectores/fisiología,
Leishmaniasis Cutánea/transmisión,
Leishmaniasis Visceral/transmisión,
Densidad de Población,
Psychodidae/fisiología,
Estaciones del Año,
Distribución por Sexo,
Factores de Tiempo
