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de Oliveira JA, Anastácio DB, Silva TRM, Silva SS, de Carvalho GA, Ramos RAN. Triatomine vectors of Trypanosoma cruzi in an endemic area for Chagas disease in Northeast Brazil. Rev Soc Bras Med Trop 2024; 57:e007002023. [PMID: 38324807 PMCID: PMC10852468 DOI: 10.1590/0037-8682-0413-2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/17/2023] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND We assessed the distribution of triatomines in an endemic area for Chagas disease. METHODS This retrospective study used secondary data extracted from the Official System of the National Chagas Disease Control Program (Sistema Oficial do Programa Nacional de Controle da Doença de Chagas - SisPCDCh). RESULTS A total of 7,257 (725.7 ± 221.7 per year) specimens were collected from 2013 to 2022. Most of them (6,792; 93.6%) were collected in the intradomicile and 465 (6.4%) in the peridomicile. A total of 513 (7.1%) triatomines tested positive for the presence of trypomastigote forms, similar to Trypanosoma cruzi. CONCLUSIONS The spatial analysis revealed a heterogeneous distribution of triatomines across different municipalities.
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Affiliation(s)
- José Atanásio de Oliveira
- Universidade Federal do Agreste de Pernambuco, Laboratório de Parasitologia, Garanhuns, PE, Brasil
- Universidade Federal Rural de Pernambuco, Programa de Pós-Graduação em Biociência Animal, Recife, PE, Brasil
| | | | | | - Samuel Souza Silva
- Universidade Federal do Agreste de Pernambuco, Laboratório de Parasitologia, Garanhuns, PE, Brasil
- Universidade Federal Rural de Pernambuco, Programa de Pós-Graduação em Biociência Animal, Recife, PE, Brasil
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Mathison BA, Sapp SGH. An annotated checklist of the eukaryotic parasites of humans, exclusive of fungi and algae. Zookeys 2021; 1069:1-313. [PMID: 34819766 PMCID: PMC8595220 DOI: 10.3897/zookeys.1069.67403] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 08/20/2021] [Indexed: 12/13/2022] Open
Abstract
The classification of "parasites" in the medical field is a challenging notion, a group which historically has included all eukaryotes exclusive of fungi that invade and derive resources from the human host. Since antiquity, humans have been identifying and documenting parasitic infections, and this collective catalog of parasitic agents has expanded considerably with technology. As our understanding of species boundaries and the use of molecular tools has evolved, so has our concept of the taxonomy of human parasites. Consequently, new species have been recognized while others have been relegated to synonyms. On the other hand, the decline of expertise in classical parasitology and limited curricula have led to a loss of awareness of many rarely encountered species. Here, we provide a comprehensive checklist of all reported eukaryotic organisms (excluding fungi and allied taxa) parasitizing humans resulting in 274 genus-group taxa and 848 species-group taxa. For each species, or genus where indicated, a concise summary of geographic distribution, natural hosts, route of transmission and site within human host, and vectored pathogens are presented. Ubiquitous, human-adapted species as well as very rare, incidental zoonotic organisms are discussed in this annotated checklist. We also provide a list of 79 excluded genera and species that have been previously reported as human parasites but are not believed to be true human parasites or represent misidentifications or taxonomic changes.
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Affiliation(s)
- Blaine A. Mathison
- Institute for Clinical and Experimental Pathology, ARUP Laboratories, Salt Lake City, UT, USAInstitute for Clinical and Experimental PathologySalt Lake CityUnited States of America
| | - Sarah G. H. Sapp
- Parasitic Diseases Branch, Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USACenters for Disease Control and PreventionAtlantaUnited States of America
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de Oliveira J, da Rosa JA, Fontes FM, Andrade DC, Madi RR, de Melo CM. Psammolestes tertius Lent & Jurberg, 1965 (Hemiptera, Reduviidae, Triatominae): first report in Sergipe State, Brazil. Rev Soc Bras Med Trop 2021; 54:e0708-2020. [PMID: 33759924 PMCID: PMC8008867 DOI: 10.1590/0037-8682-0708-2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/21/2021] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION This study reports the first occurrence of Psammolestes tertius (Hemiptera, Reduviidae, Triatominae) in the state of Sergipe, Brazil. METHODS In 2020, 95 specimens were collected from the municipality of Porto da Folha, Sergipe, Brazil. RESULTS This finding expands the geographical distribution of the species from 15 states in Brazil to 16 and increases the biodiversity of triatomines in the state of Sergipe. CONCLUSIONS The presence of P. tertius in the state of Sergipe demonstrated a wider distribution of this species in northeastern Brazil.
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Affiliation(s)
- Jader de Oliveira
- Universidade de São Paulo, Faculdade de Saúde Pública, São Paulo, SP, Brasil
- Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Farmacêuticas, Departamento de Ciências Biológicas, Araraquara, SP, Brasil
| | - João Aristeu da Rosa
- Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Farmacêuticas, Departamento de Ciências Biológicas, Araraquara, SP, Brasil
| | - Felipe Mendes Fontes
- Universidade Tiradentes, Programa de Pós-Graduação em Saúde e Ambiente, Aracaju, SE, Brasil
| | - David Campos Andrade
- Universidade Tiradentes, Programa de Pós-Graduação em Saúde e Ambiente, Aracaju, SE, Brasil
| | - Rubens Riscala Madi
- Universidade Tiradentes, Programa de Pós-Graduação em Saúde e Ambiente, Aracaju, SE, Brasil
- Instituto de Tecnologia e Pesquisa, Laboratório de Biologia Tropical, Aracaju, SE, Brasil
| | - Cláudia Moura de Melo
- Universidade Tiradentes, Programa de Pós-Graduação em Saúde e Ambiente, Aracaju, SE, Brasil
- Instituto de Tecnologia e Pesquisa, Laboratório de Doenças Infecciosas e Parasitárias, Aracaju, SE, Brasil
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Penados D, Pineda J, Catalan M, Avila M, Stevens L, Agreda E, Monroy C. Infestation dynamics of Triatoma dimidiata in highly deforested tropical dry forest regions of Guatemala. Mem Inst Oswaldo Cruz 2020; 115:e200203. [PMID: 33146245 PMCID: PMC7592497 DOI: 10.1590/0074-02760200203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 10/05/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Deforestation, driven by anthropogenic change in land use, influences the behaviour and abundance of vector-borne diseases. For various species of Chagas disease vectors, there is evidence that change in land use affects population density and abundance. Triatoma dimidiata is the most important Chagas vector in Guatemala, and at least one million people live in T. dimidiata endemic areas; however, infestation dynamics vary among regions, from high infestation with all life stages to low seasonal infestation by sylvatic adults. OBJECTIVES The aim of this study was to evaluate how land-use, combined with domiciliary risk factors, influences the infestation dynamics of T. dimidiata for four villages in a dry forest region with a strong deforestation history. METHODS Land use, measured with drone and satellite images, was classified into four categories (houses, monocultures and pastures, woodland and shrubland, and bare soil). Domiciliary risk factors and infestation were assessed through entomological surveys. Statistical analyses compared infestation indices and the ability of land use and domiciliary risk factors to explain infestation. FINDINGS Two villages had significantly higher infestation (26 and 30% vs. 5 and 6%), yet all villages had high colonisation (71-100% of infested houses had immature insects), with no significant difference among them. Because of the high level of deforestation across the study area, land use was not related to infestation; however, domiciliary risk factors were. A model based on four weighted domiciliary risk factors (adobe or bajareque walls, intradomicile animals, intradomicile clutter, and dirt floors) explains the infestation risk. MAIN CONCLUSIONS Because almost all infested houses have reproducing populations in this deforested dry forest region and statistical analysis identified the domiciliary risk factors for infestation, intermediate and long-term control of Chagas disease vectors in this region requires management of these risk factors.
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Affiliation(s)
- Daniel Penados
- Universidad de San Carlos de Guatemala, Laboratorio de Entomología Aplicada y Parasitología, Ciudad de Guatemala, Guatemala
| | - José Pineda
- Universidad de San Carlos de Guatemala, Laboratorio de Entomología Aplicada y Parasitología, Ciudad de Guatemala, Guatemala
| | - Michelle Catalan
- Universidad de San Carlos de Guatemala, Facultad de Ciencias Químicas y Farmacia, Escuela de Biología, Ciudad de Guatemala, Guatemala
| | - Miguel Avila
- Universidad de San Carlos de Guatemala, Centros de Estudios Conservacionistas, Ciudad de Guatemala, Guatemala
| | - Lori Stevens
- University of Vermont, Department of Biology, Burlington, VT, USA
| | - Emmanuel Agreda
- Universidad de San Carlos de Guatemala, Laboratorio de Entomología Aplicada y Parasitología, Ciudad de Guatemala, Guatemala
| | - Carlota Monroy
- Universidad de San Carlos de Guatemala, Laboratorio de Entomología Aplicada y Parasitología, Ciudad de Guatemala, Guatemala
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Silva TRM, Barros GMMDR, Lima TARF, Giannelli A, Silva GMD, Alves KMDL, Carvalho GAD, Ramos RAN. Spatial distribution of triatomine bugs in a Chagas disease endemic region in Brazil. Rev Soc Bras Med Trop 2019; 52:e20190278. [PMID: 31778421 DOI: 10.1590/0037-8682-0278-2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 09/24/2019] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Trypanosoma cruzi is the etiological agent of Chagas disease (CD), a zoonotic infection transmitted by triatomine bug vectors to human beings. Although the story of this parasitic infection was born in Brazil and here this has made major step forward information, the same cannot be said about the actual distribution of the triatomine vector in several areas of this country. The aim of this study was to assess the occurrence of triatomine species in an endemic region for CD in Northeastern Brazil. METHODS A retrospective study was performed using data obtained from 2008 to 2017. All information was provided by the V Gerência Regional de Saúde of the state of Pernambuco. The spatial distribution of triatomine species was analyzed by drawing a map using the Quantum geographic information system. RESULTS A total of 4,694 triatomine specimens (469.4 ± 221.2 per year) were collected during the period 2008-2017, with 94.5% (4,434/4,694) at the intradomicile and 5.5% (260/4,694) at peridomicile environment. Of all arthropods collected, 92.5% (4,340/4,694) and 7.5% (354/4,694) were adults and nymphs, respectively. The species most frequently detected were Panstrongylus lutzi (30.36%), Triatoma brasiliensis (26.12%), Triatoma pseudomaculata (22.43%), and Panstrongylus megistus (20.54%). CONCLUSIONS These data contribute to a better understanding of the distribution of T. cruzi infection in the Northeastern region of Brazil. Preventive measures based on vector control should be implemented in the study area in order to reduce the burden this neglected tropical disease.
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Affiliation(s)
- Tatiene Rossana Móta Silva
- Programa de Pós-Graduação Stricto Sensu em Ciência Animal Tropical, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil
| | | | | | | | - Gesika Maria da Silva
- Programa de Pós-Graduação Stricto Sensu em Ciência Animal Tropical, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil.,V Gerência Regional de Saúde, Secretaria Estadual de Saúde, Garanhuns, PE, Brasil
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