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Home / Archives for Cristóvão JM

Molecular detection of Leishmania DNA and identification of blood meals in wild caught phlebotomine sand flies (Diptera Psychodidae) from southern Portugal

  • Authors: Afonso MO, Campino L, Cristóvão JM, Freitas FB, Maia C, Parreira R
  • Publication Year: 2015
  • Journal: Parasites & Vectors
  • Link: https://parasitesandvectors.biomedcentral.com/articles/10.1186/s13071-015-0787-4%20

Zoonotic visceral leishmaniasis caused by Leishmania infantum which is transmitted by phlebotomine sand flies (Diptera, Psychodidae) is endemic in the Mediterranean basin. The main objectives of this study were to (i) detect Leishmania DNA and (ii) identify blood meal sources in wild caught female sand flies in the zoonotic leishmaniasis region of Algarve, Portugal/Southwestern Europe. Phlebotomine sand flies were […]
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Exploring the utility of phylogenetic analysis of cytochrome oxidase gene subunit I as a complementary tool to classical taxonomical identification of phlebotomine sand fly species (Diptera, Psychodidae) from southern Europe

  • Authors: Afonso MO, Campino L, Cristóvão JM, Maia C, Parreira R
  • Publication Year: 2015
  • Journal: Acta Tropica
  • Link: https://www.sciencedirect.com/science/article/pii/S0001706X14004070?via%3Dihub

Phlebotomine sand flies (Diptera, Psychodidae) are known to be vectors of several pathogens such as Leishmania and Phlebovirus genera. The identification of phlebotomine sand fly species is currently based on morphological characters, and requires considerable taxonomic expertise and skilfulness, but may be complemented by DNA-based analyses for (i) accurate species identification and (ii) for estimating […]
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Rotation of the external genitalia in male Phlebotomine sand flies (Diptera, Psychodidae) in laboratory conditions and in captured specimens in Algarve, Portugal

  • Authors: Afonso MO, Alves-Pires C, Campino L, Cristóvão JM, Ferrolho J, Gomes J, Maia C
  • Publication Year: 2015
  • Journal: Acta Tropica
  • Link: https://www.sciencedirect.com/science/article/pii/S0001706X15300383?via%3Dihub

Protozoal parasites are the causative agents of many insect-borne infectious diseases worldwide with impact on human and animal health. Leishmaniasis is caused by Leishmania spp. and transmitted by female Phlebotomine sand flies. In Portugal, two species of Phlebotomus (Larroussius), namely Phlebotomus perniciosus and Phlebotomus ariasi are the proven vectors of Leishmania infantum. Phlebotomine females and […]
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The recombinant protein rSP03B is a valid antigen for screening dog exposure to Phlebotomus perniciosus across foci of canine leishmaniasis

  • Authors: Campino L, Courtenay O, Cristóvão JM, Fiorentino E, Gradoni L, Gramiccia M, Kostalova T, Lestinova T, Maia C, Oliva G, Polanska N, Scalone A, Sumova P, Veronesi F, Vlkova M, Volf P, Willen L
  • Publication Year: 2017
  • Journal: Medical and Veterinary Entomology
  • Link: https://onlinelibrary.wiley.com/doi/abs/10.1111/mve.12192%20

The frequency of sandfly-host contacts can be measured by host antibody levels against sandfly salivary proteins. Recombinant salivary proteins are suggested to represent a valid replacement for salivary gland homogenate (SGH); however, it is necessary to prove that such antigens are recognized by antibodies against various populations of the same species. Phlebotomus perniciosus (Diptera: Psychodidae) […]
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Serological association between Leishmania infantum and sand fly fever Sicilian (but not Toscana) virus in sheltered dogs from southern Portugal

  • Authors: Alwassouf S, Ayhan N, Campino L, Charrel RN, Cristóvão JM, Maia C, Pereira A
  • Publication Year: 2017
  • Journal: Parasites & Vectors
  • Link: https://parasitesandvectors.biomedcentral.com/articles/10.1186/s13071-017-2023-x

Phlebotomine sand fly-borne diseases such as leishmanioses and phleboviruses are emerging threats to animal and public health. Canine leishmaniosis caused by Leishmania infantum is an endemic zoonosis in Portugal. Antibodies to Toscana virus (TOSV) and sand fly fever Sicilian virus (SFSV) were also reported in dogs from the south of the country. The aim of this work […]
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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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