GHTM

Global Health and Tropical Medicine

Home / Archives for Silveira H

Fresh-blood-free diet for rearing malaria mosquito vectors

Mosquito breeding depends on the supply of fresh vertebrate blood, a major bottleneck for large-scale production of Anopheles spp. Feeding alternatives to fresh blood are thus a priority for research, outdoor large-cage trials and control interventions. Several artificial meal compositions were tested and Anopheles oogenesis, egg laying and development into the next generation of adult mosquitoes were followed. We […]
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Composition of sand fly fauna (Diptera: Psychodidae) and detection of Leishmania DNA (Kinetoplastida: Trypanosomatidae) in different ecotopes from a rural settlement in the central Amazon, Brazil

BACKGROUND: Phlebotomine sand flies (Diptera: Psychodidae) are vectors of Leishmania species, the etiological agents of leishmaniasis, which is one of the most important emerging infectious diseases in the Americas. In the state of Amazonas in Brazil, anthropogenic activities encourage the presence of these insects around rural homes. The present study aimed to describe the composition […]
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More than a half century of malaria research at IHMT

Malaria is a parasitic infection transmitted by Anopheles mosquitoes. Five species of the genus Plasmodium cause disease in humans: P. vivax, P. malariae, P. ovale, P. knowlesi e P. falciparum being the last, the one that causes most mortality and morbidity. During 1950s and early 1960s, the global eradication of malaria was believed possible, but the successively implemented eradication­programmes failed and eradication was achieved […]
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Polymerase chain reaction-based method for the identification of leishmania (viannia) Braziliensis and leishmania (viannia) guyanensis in mucosal tissues conserved in paraffin

In the Americas, mucosal leishmaniasis is primarily associated with infection by Leishmania (Viannia) braziliensis. However, Leishmania (Viannia) guyanensis is another important cause of this disease in the Brazilian Amazon. In this study, we aimed at detecting Leishmaniadeoxyribonucleic acid (DNA) within paraffin-embedded fragments of mucosal tissues, and characterizing the infecting parasite species. We evaluated samples collected […]
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Scientific Research Policy for Health in Portugal: I – European and National Environment

The global debate on scientific research policy for human health has been led by World Health Organisation with important contributions from other stakeholders such as Council on Health Research for Development, the World Bank and the Global Forum for Health Research. Recently it has been dominated by the thematic agendas of major global financiers. There is a […]
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About GHTM

GHTM is a R&D Unit that brings together researchers with a track record in Tropical Medicine and International & Global Health. It aims at strengthening Portugal's role as a leading partner in the development and implementation of a global health research agenda. Our evidence-based interventions contribute to the promotion of equity in health and to improve the health of populations.

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