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      First record of a mermithid worm (Nematoda, Mermithidae) parasitizing a third instar nymph of Triatoma sordida (Stål, 1859) (Hemiptera, Reduviidae, Triatominae) from Mato Grosso, Brazil

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          Abstract

          A juvenile specimen of a mermithid ( Nematoda ) was found parasitizing a third instar nymph of Triatoma sordida from Mato Grosso, Brazil. This is the first record of mermithid parasitism in a triatomine species. The Mermithidae represents a family of nematodes that are specialized insect parasites. Entomonematodes are one of the highly influential agents regulating the population dynamics of insects. This report introduces the opportunity to think about mermithids as a possible candidate for use as triatomine biological control.

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          Most cited references55

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          Evolutionary Ecology of Parasites

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            An overview on the ecology of Triatominae (Hemiptera:Reduviidae).

            Chagas disease, the American trypanosomiasis, is an important neglected tropical illness caused by the flagellate protozoan Trypanosoma cruzi (Kinetoplastida, Trypanosomatidae) and transmitted by insects of the subfamily Triatominae (Hemiptera: Reduviidae). Here we provide an overview on the current knowledge about Triatominae ecology, its association with human, T. cruzi infection and the immediate consequences of habitat fragmentation. We also discuss the geographic distribution of the species and the importance of predicting their distributions to control programs.
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              Acute Chagas disease outbreak associated with oral transmission

              Seven individuals living in a town in the Southwest of Bahia developed sudden signs of cardiac and systemic impairment, with lethality of 28.6%. Serological tests were positive at least in one test in the five patients examined. Forty percent of the Triatoma sordida mynphs found inside or around Trypanosoma cruzi were found by blood culturig in there out five cases the homes of these cases were positive for Trypanosoma cruzi. Transmission probably occurred through consumption of water contaminated with triatomine feces. These findings emphasize the necessity to evaluation the importance of vectors like Triatoma sordida in maintaining the endemicity of this disease.
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                Author and article information

                Contributors
                Journal
                Zookeys
                Zookeys
                2
                urn:lsid:arphahub.com:pub:45048D35-BB1D-5CE8-9668-537E44BD4C7E
                urn:lsid:zoobank.org:pub:91BD42D4-90F1-4B45-9350-EEF175B1727A
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2020
                28 October 2020
                : 980
                : 79-91
                Affiliations
                [1 ] Departamento de Vigilância em Saúde Ambiental, Secretaria de Estado de Saúde de Mato Grosso – SESMT. Amaro Leite, 474, Barra do Garças, MT, 78600–000, Brazil Secretaria de Estado de Saúde de Mato Grosso Barra do Garças Brazil
                [2 ] Programa de Pós-Graduação em Biodiversidade e Saúde, Instituto Oswaldo Cruz, FIOCRUZ, Av. Brasil 4365, Rio de Janeiro, RJ, 21040–360, Brazil Instituto Oswaldo Cruz Rio de Janeiro Brazil
                [3 ] Laboratório de Helmintos Parasitos de Peixes, Instituto Oswaldo Cruz, FIOCRUZ, Av. Brasil 4365, Pavilhão Cardoso Fontes, sala 45, Rio de Janeiro, RJ, 21040–360, Brazil Secretaria de Estado de Saúde de Mato Grosso Barra do Garças Brazil
                [4 ] Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz, FIOCRUZ, Av. Brasil 4365, Pavilhão Rocha Lima, sala 505, Rio de Janeiro, RJ, 21040–360, Brazil Instituto Oswaldo Cruz Rio de Janeiro Brazil
                Author notes
                Corresponding author: Simone Chinicz Cohen ( scohen@ 123456ioc.fiocruz.br )

                Academic editor: David Fitch

                Author information
                https://orcid.org/0000-0001-6288-7995
                https://orcid.org/0000-0001-8204-336X
                https://orcid.org/0000-0003-4384-357X
                https://orcid.org/0000-0003-4027-9205
                Article
                55865
                10.3897/zookeys.980.55865
                7642169
                33192139
                13eb980b-0467-4d71-af1b-5b6cf8708585
                Mirian Francisca Martins, Sinara Cristina de Moraes, Simone Chinicz Cohen, Melissa Querido Cárdenas, Cleber Galvão

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 26 June 2020
                : 30 July 2020
                Categories
                Research Article
                Nemata
                Biodiversity & Conservation
                Americas
                Brazil

                Animal science & Zoology
                mato grosso,brazil, mermithidae , nematoda ,new host record,triatoma sordida, triatominae ,parasite

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