Results: 41

Occurrence of triatomines in an urban residential complex in the municipality of Rio Branco, Acre, South-Western Amazon

Abstract INTRODUCTION: This study describes the occurrence of triatomines, and their positivity for trypanosomatids, in a residential complex in Rio Branco, Acre, Brazil. METHODS: Triatomines were collected through direct capture in a home environment. Positivity analysis for trypanosomatids was perf...

Survey of trypanosoma (kinetoplastida: trypanosomatidae) infection in Monte Negro Municipality, State of Rondônia, western amazon, with first record of T. evansi in the state

Abstract INTRODUCTION: Trypanosomes can infect humans and animals. This is the first record of the occurrence of Trypanosoma evansi in Rondônia. METHODS: Blood samples were collected from 7 dogs and 22 humans. Furthermore, triatomines and tabanids were collected. RESULTS: It was observed that 42.8%...

Genetic diversity and molecular survey of Trypanosoma (Megatrypanum ) theileri in cattle in Brazil's western Amazon region

Abstract Trypanosoma (Megatrypanum) theileri is a flagellated protozoan that infects ruminants and it displays high genetic diversity. In this study, we investigated the prevalence rates of this protozoan based on hemoculture and molecular diagnosis. The isolates of T. theileri thus obtained were charact...

Trypanosoma janseni n. sp. (Trypanosomatida: Trypanosomatidae) isolated from Didelphis aurita (Mammalia: Didelphidae) in the Atlantic Rainforest of Rio de Janeiro, Brazil: integrative taxonomy and phylogeography within the Trypanosoma cruzi clade

Mem. Inst. Oswaldo Cruz; 113 (1), 2018
BACKGROUND Didelphis spp. are a South American marsupial species that are among the most ancient hosts for the Trypanosoma spp. OBJECTIVES We characterise a new species (Trypanosoma janseni n. sp.) isolated from the spleen and liver tissues of Didelphis aurita in the Atlantic Rainforest of Rio de Janeir...

Bat trypanosomes from Tapajós-Arapiuns Extractive Reserve in Brazilian Amazon

Abstract Trypanosoma comprises flagellates able to infect several mammalian species and is transmitted by several groups of invertebrates. The order Chiroptera can be infected by the subgenera Herpetosoma, Schizotrypanum, Megatrypanum and Trypanozoon. In this study, we described the diversity of bat tryp...

Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in capybaras ( Hydrochoerus hydrochaeris ): prevalence, effect and sexual selection

Rev. biol. trop; 65 (1), 2017
AbstractParasites play a crucial role in the ecology of animals. They also appear to be important in mechanisms underlying sexual selection processes. In this article we study the prevalence, effect and potential role in sexual selection of the protozoon Trypanosoma evansi in capybaras, Hydrochoerus hydr...

Infecção por tripanosomatídeos em morcegos (Mammalia: Chiroptera) capturados em diferentes áreas do Brasil e desenvolvimento de uma PCR Multiplex como ferramenta diagnóstica da infecção por Leishmania spp. em mamíferos silvestres

A capacidade de voo verdadeiro dos morcegos os permite explorar uma diversidade de ambientes com características epidemiológicas distintas. Embora sejam hospedeiros de outros tripanosomatídeos, sua participação no ciclo de transmissão de Leishmania spp. ainda é subestimada. Nesse sentido buscamos ...

Tripanosomatídeos em morcegos de áreas florestais com diferentes níveis de antropização na Mata Atlântica do Rio de Janeiro

Tripanosomatídeos (família Trypanosomatidae) são organismos unicelulares distribuídos mundialmente infectando invertebrados e vertebrados e incluem parasitos dos gêneros Trypanosoma e Leishmania, de grande importância em saúde pública. Os morcegos estão entre os hospedeiros mais antigos destes p...

Infections of Hypostomus spp. by Trypanosoma spp. and leeches: a study of hematology and record of these hirudineans as potential vectors of these hemoflagellates

Abstract Among Kinetoplastida, the Trypanosoma is the genus with the highest occurrence infecting populations of marine fish and freshwater in the world, with high levels of prevalence, causing influences fish health and consequent economic losses, mainly for fish populations in situation stress. This st...

Trypanosomatids (Protozoa: Kinetoplastida) in three species of Armored Catfish from Mogi-Guaçu river, Pirassununga, São Paulo, Brazil

Abstract Trypanosome infections have been reported in several species of fish, in majority of cases described on the basis of morphological characteristics. Trypanosomes in fish are heteroxenous and transmitted by hirudineans. This study aims to evaluate the prevalence and density of infections by Trypan...