Temporal assessment of entomological surveillance of Trypanosoma cruzi vectors in an endemic area of northeastern Brazil.
Entomological surveillance is essential for the control of triatomines and the prevention of Trypanosoma cruzi infection in humans and domestic animals. Thus, the objective of this study was to evaluate entomological indicators and triatomine control during the period from 2005 to 2015 in an endemic...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2023-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0287260 |
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| author | George Harisson Felinto Sampaio Andressa Noronha Barbosa da Silva Christiane Carlos Araújo de Negreiros Nathan Ravi Medeiros Honorato Rand Randall Martins Lúcia Maria Abrantes Aguiar Letícia Mikardya Lima Sales Carlos Ramon do Nascimento Brito Paulo Marcos da Matta Guedes Antonia Claudia Jácome da Câmara Lúcia Maria da Cunha Galvão |
| author_facet | George Harisson Felinto Sampaio Andressa Noronha Barbosa da Silva Christiane Carlos Araújo de Negreiros Nathan Ravi Medeiros Honorato Rand Randall Martins Lúcia Maria Abrantes Aguiar Letícia Mikardya Lima Sales Carlos Ramon do Nascimento Brito Paulo Marcos da Matta Guedes Antonia Claudia Jácome da Câmara Lúcia Maria da Cunha Galvão |
| author_sort | George Harisson Felinto Sampaio |
| collection | DOAJ |
| description | Entomological surveillance is essential for the control of triatomines and the prevention of Trypanosoma cruzi infection in humans and domestic animals. Thus, the objective of this study was to evaluate entomological indicators and triatomine control during the period from 2005 to 2015 in an endemic area in the state of Rio Grande do Norte, Brazil. This observational and retrospective study was developed based on data analysis related to active entomological surveillance activities and chemical control of infested housing units (HU) in the Agreste mesoregion of the state of Rio Grande do Norte, Brazil, in the period between 2005 to 2015. The quantitative analysis of housing units surveyed for entomological indicators was performed by linear regression of random effects (p < 0.05). The effect of the number of HU surveyed on the entomological indicators was analyzed by fitting a linear random effects regression model and an increasing intradomiciliary colonization rate was significant. In the period evaluated 92,156 housing units were investigated and the presence of triatomines was reported in 4,639 (5.0%). A total of 4,653 specimens of triatomines were captured and the species recorded were Triatoma pseudomaculata (n = 1,775), Triatoma brasiliensis (n = 1,569), Rhodnius nasutus (n = 741) and Panstrongylus lutzi (n = 568), with an index of natural infection by T. cruzi of 2.2%. Only 53.1% of the infested HU were subjected to chemical control. Moreover, there was a decrease in the total number of HU surveyed over time associated with an increase in the index of intradomiciliary colonization (p = 0.004). These data demonstrated that entomological surveillance and control of vectors in the Agreste mesoregion of the state has been discontinued, emphasizing the need for more effective public policies to effectively control the vectors, in order to avoid the exposure of humans and domestic animals to the risk of T. cruzi infection. |
| first_indexed | 2024-03-13T04:25:51Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-03-13T04:25:51Z |
| publishDate | 2023-01-01 |
| publisher | Public Library of Science (PLoS) |
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| spelling | doaj.art-654bcbf877224dba871dd48ee9e65c012023-06-20T05:31:02ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01186e028726010.1371/journal.pone.0287260Temporal assessment of entomological surveillance of Trypanosoma cruzi vectors in an endemic area of northeastern Brazil.George Harisson Felinto SampaioAndressa Noronha Barbosa da SilvaChristiane Carlos Araújo de NegreirosNathan Ravi Medeiros HonoratoRand Randall MartinsLúcia Maria Abrantes AguiarLetícia Mikardya Lima SalesCarlos Ramon do Nascimento BritoPaulo Marcos da Matta GuedesAntonia Claudia Jácome da CâmaraLúcia Maria da Cunha GalvãoEntomological surveillance is essential for the control of triatomines and the prevention of Trypanosoma cruzi infection in humans and domestic animals. Thus, the objective of this study was to evaluate entomological indicators and triatomine control during the period from 2005 to 2015 in an endemic area in the state of Rio Grande do Norte, Brazil. This observational and retrospective study was developed based on data analysis related to active entomological surveillance activities and chemical control of infested housing units (HU) in the Agreste mesoregion of the state of Rio Grande do Norte, Brazil, in the period between 2005 to 2015. The quantitative analysis of housing units surveyed for entomological indicators was performed by linear regression of random effects (p < 0.05). The effect of the number of HU surveyed on the entomological indicators was analyzed by fitting a linear random effects regression model and an increasing intradomiciliary colonization rate was significant. In the period evaluated 92,156 housing units were investigated and the presence of triatomines was reported in 4,639 (5.0%). A total of 4,653 specimens of triatomines were captured and the species recorded were Triatoma pseudomaculata (n = 1,775), Triatoma brasiliensis (n = 1,569), Rhodnius nasutus (n = 741) and Panstrongylus lutzi (n = 568), with an index of natural infection by T. cruzi of 2.2%. Only 53.1% of the infested HU were subjected to chemical control. Moreover, there was a decrease in the total number of HU surveyed over time associated with an increase in the index of intradomiciliary colonization (p = 0.004). These data demonstrated that entomological surveillance and control of vectors in the Agreste mesoregion of the state has been discontinued, emphasizing the need for more effective public policies to effectively control the vectors, in order to avoid the exposure of humans and domestic animals to the risk of T. cruzi infection.https://doi.org/10.1371/journal.pone.0287260 |
| spellingShingle | George Harisson Felinto Sampaio Andressa Noronha Barbosa da Silva Christiane Carlos Araújo de Negreiros Nathan Ravi Medeiros Honorato Rand Randall Martins Lúcia Maria Abrantes Aguiar Letícia Mikardya Lima Sales Carlos Ramon do Nascimento Brito Paulo Marcos da Matta Guedes Antonia Claudia Jácome da Câmara Lúcia Maria da Cunha Galvão Temporal assessment of entomological surveillance of Trypanosoma cruzi vectors in an endemic area of northeastern Brazil. PLoS ONE |
| title | Temporal assessment of entomological surveillance of Trypanosoma cruzi vectors in an endemic area of northeastern Brazil. |
| title_full | Temporal assessment of entomological surveillance of Trypanosoma cruzi vectors in an endemic area of northeastern Brazil. |
| title_fullStr | Temporal assessment of entomological surveillance of Trypanosoma cruzi vectors in an endemic area of northeastern Brazil. |
| title_full_unstemmed | Temporal assessment of entomological surveillance of Trypanosoma cruzi vectors in an endemic area of northeastern Brazil. |
| title_short | Temporal assessment of entomological surveillance of Trypanosoma cruzi vectors in an endemic area of northeastern Brazil. |
| title_sort | temporal assessment of entomological surveillance of trypanosoma cruzi vectors in an endemic area of northeastern brazil |
| url | https://doi.org/10.1371/journal.pone.0287260 |
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