27 documents found, page 1 of 3

Victor Py-Daniel (1951-2021)

   

Designação da espécie-tipo de Shelleyellum Py-Daniel & Pessoa, 2005 (Diptera: S...

The importance of thick blood film method for sympatric filarial diagnosis in A...

In this work, the visual diagnostic methods for human filarias in the blood are evaluated. The thick blood film method is more faithful to identify the microfilariae species if compared to policarbonate membrane filtration and Knott methods, especially in areas where more than one species occur, as in Amazon basin. Slides with Mansonella ozzardi microfilariae were mounted and photographed by different diagnosis...

Epidemiological aspects of american cutaneous leishmaniasis and phlebotomine sa...

Introduction: This work was carried out on the purpose of identifying the species of phlebotomine sandflies in the municipality of Monte Negro, state of Rondonia, Brazil, that may have been transmitting the American cutaneous leishmaniasis (ACL), and concisely describe epidemiological aspects of disease. Methods: The epidemiologic and socioeconomical indicators were obtained from government institutions and the...

Mansonella ozzardi in the municipality of Tefé, Amazonas, Brazil, 60 years afte...

The prevalence of mansonelliasis was studied in the municipality of Tefé, state of Amazonas, Brazil. The prevalence (thick blood smear method) was 13.6% (147/1,078), higher in the Solimões River region (16.3%) than in the Tefé River region (6.3%). In the sampled communities in the Solimões River region, a higher density of cases was observed, as indicated by a kernel analysis (odds ratio 0.34; 95% confidence in...

Revisão e análise cladística dos gêneros Cerqueirellum (Py-Daniel, 1983) e Cosc...

Os insetos da família Simuliidae são hematófagos e vetores de diversos patógenos dentre os quais destacam-se os vermes filarióides Mansonella ozzardi e a Onchorcerca volvulus. Dentre os grupos supraespecíficos que são vetores de mansonelose e oncocercose na América do Sul, destaca-se gênero Cerqueirellum (Py-Daniel). O gênero Coscaroniellum (Py-Daniel) é um genêro filogeneticamente muito próximo a Cerqueirellu....

An overview of malaria transmission from the perspective of amazon anopheles ve...

In the Americas, areas with a high risk of malaria transmission are mainly located in the Amazon Forest, which extends across nine countries. One keystone step to understanding the Plasmodium life cycle in Anopheles species from the Amazon Region is to obtain experimentally infected mosquito vectors. Several attempts to colonise Ano-pheles species have been conducted, but with only short-lived success or no suc...

Haematophagic behavior in laboratory of Lutzomyia cruzi (Mangabeira) (Diptera: ...

O flebotomíneo Lutzomyia cruzi é incriminado como um dos vetores de leishmaniose visceral no Brasil. Foram estudados: a idade ótima, a preferência alimentar, os índices de fecundidade e o volume de alimentação sanguínea realizado com fêmeas de L. cruzi colonizadas em laboratório. O tempo médio de alimentação foi maior em hamster, seguido de humano. Verificou-se que 49,1% das fêmeas alimentaram-se em humano com ...

Anthropic effects on sand fly (Diptera: Psychodidae) abundance and diversity in...

Sand flies (Diptera: Psychodidae) are responsible for the transmission of protozoan parasites that cause leishmaniases. They are found predominantly in forests, but some species exploit environments that have been subject to deforestation and subsequent human colonization. Studies conducted in Brazil over the past 30 years show that some species are adapting to peri-urban and urban settings. We evaluated sand f...

Ecological aspects and molecular detection of Leishmania DNA Ross (Kinetoplasti...

Background: Phlebotomine sand flies (Diptera: Psychodidae) are insects of medical importance due to the role that some species play in the transmission of leishmaniasis. This work aimed to study some ecological aspects among sand flies fauna inhabiting two different environments: the várzea (lowland Amazonian forest) and terra firme (upland Amazonian forest), both located in Tefé Municipality, Amazonas State, B...