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1.
MedUNAB ; 24(3): 387-391, 202112.
Article in Spanish | LILACS | ID: biblio-1353470

ABSTRACT

La enfermedad de Chagas es una zoonosis producida por la infección del Trypanosoma cruzi (T. cruzi) (1), cuya principal vía de transmisión es vectorial (2). Esta enfermedad se caracteriza por ser una infección crónica que puede ocasionar daños cardiacos, digestivos y neurológicos irreversibles (3). En el departamento del Putumayo, de acuerdo con los datos del Sistema de Vigilancia Epidemiológica (SIVIGILA), entre el año 2015 y el 2020, se han notificado 19 casos de Chagas crónico y 4 casos de Chagas agudos (4). Por este motivo resulta de gran interés compartir con los lectores de la revista MedUNAB la actualización de la distribución geográfica de los triatominos, vectores de la enfermedad de Chagas, y establecer el riesgo epidemiológico que representan para la población Putumayense, donde hay hallazgos de gran importancia porque se identifican especies en municipios y localidades donde antes no se conocían. Palabras claves: Triatominae; Enfermedad de Chagas; Infección por Trypanosoma cruzi; Infecciones; Insectos Vectores; Colombia.


Chagas Disease is a zoonotic disease produced by infection with Trypanosoma cruzi (T. cruzi) (1), whose main route of transmission is vectorial (2). This disease is characterized by being a chronic infection that can cause irreversible cardiac, digestive, and neurological damage (3). In the department of Putumayo, according to data from the epidemiological surveillance system (SIVIGILA, for the Spanish original), between 2015 and 2020, 19 chronic cases and 4 acute cases of Chagas were reported (4). For this reason, it is important to share with the readers of the MedUNAB journal the update to the geographical distribution of triatomines, vectors of Chagas Disease, and to establish the epidemiological risk that they represent for the population of Putumayo, where there are findings of great importance as species are identified in municipalities and localities where they were not previously found. Keywords: Triatominae; Chagas Disease; Trypanosoma cruzi; Infections; Insect Vectors; Colombia.


A doença de Chagas é uma zoonose causada por infecção com Trypanosoma cruzi (T. cruzi) (1), cujo principal modo de transmissão é vetorial (2). Esta doença é uma infecção crônica que pode causar danos cardíacos, digestivos e neurológicos irreversíveis (3). No Departamento de Putumayo, de acordo com dados do Sistema de Vigilância Epidemiológica (SIVIGILA), entre 2015 e 2020, foram notificados 19 casos de Chagas crônica e quatro casos de Chagas aguda (4). Por esta razão, é de grande interesse compartilhar com os leitores da revista MedUNAB a atualização da distribuição geográfica dos triatomíneos, vetores da doença de Chagas, e estabelecer o risco epidemiológico que representam para a população de Putumayo, onde há descobertas de grande importância, pois são identificadas espécies em municípios e localidades onde antes eram desconhecidas. Palavras-chave: Triatominae; Doença de Chagas; Infecção por Trypanosoma cruzi; Infecções; Insetos Vetores; Colômbia.


Subject(s)
Chagas Disease , Triatominae , Colombia , Infections , Insect Vectors
2.
Braz. j. biol ; 81(4): 867-871, Oct.-Dec. 2021. tab
Article in English | LILACS | ID: biblio-1153428

ABSTRACT

Abstract Chagas disease (CD) is considered a typical low-income population sickness of the developing countries in Latin America. Given the historical relevance of CD in individuals in southern Rio Grande do Sul (RS) State, Brazil, the aim of this study was to identify the knowledge of the CD and its vectors by cardiac patients, and the prevalence of anti-T cruzi antibodies in these individuals in Pelotas, city located in Rio Grande do Sul (RS) state, Brazil. The subjects with cardiac disease were submitted to a semi-structured questionnaire as well as two serological tests in order to detect anti-T. cruzi IgG antibodies. Of the individuals that born in municipalities showing the highest triatomine infestation rates in recent decades, 81.8% were able to recognize the vector insect (p = 0.0042; OR = 5.9), and 83.3% reported either themselves or someone in their families to have CD (p = 0.043, OR = 5.2). Of the 54 patients submitted to serological analysis, only 01 patient (1.9%) was positive for anti-T. cruzi antibodies, a 55 year old man from the rural area of Canguçu county. This study provides support for the evaluation to be extended to other cardiology centers, given the importance of Chagas disease in Brazil.


Resumo A doença de Chagas (DC) é considerada uma doença típica da população de baixa renda dos países em desenvolvimento da América Latina. Dada a relevância histórica da DC em indivíduos do sul do Estado do Rio Grande do Sul (RS), o objetivo deste estudo foi identificar o conhecimento da doença de Chagas (DC) e seus vetores em pacientes cardíacos, e a prevalência de anticorpos anti-T cruzi nesses indivíduos, em Pelotas, cidade localizada no Rio Grande do Sul (RS), Brasil. Os pacientes cardiopatas foram submetidos a um questionário semiestruturado, e também a dois testes sorológicos para detecção de anticorpos anti-T. cruzi IgG. Dos indivíduos que nasceram em municípios com as maiores taxas de infestação por triatomíneos nas últimas décadas, 81,8% foram capazes de reconhecer o inseto vetor (p = 0,0042; OR = 5,9), e 83,3% relataram que eles próprios ou alguém em suas famílias tem DC (p = 0,043, OR = 5,2). Dos 54 pacientes submetidos à análise sorológica, apenas 01 paciente (1,9%) foi positivo para anticorpos anti-T.cruzi, um homem de 55 anos da área rural do município de Canguçu. Este estudo fornece subsídios para que a avaliação seja estendida a outros centros de cardiologia, devido à importância da doença de Chagas no Brasil.


Subject(s)
Humans , Animals , Middle Aged , Trypanosoma cruzi , Chagas Disease/epidemiology , Brazil/epidemiology , Seroepidemiologic Studies , Insect Vectors
3.
Hist. ciênc. saúde-Manguinhos ; 28(3): 869-874, jul.-set. 2021.
Article in Spanish | LILACS | ID: biblio-1339968

ABSTRACT

Resumen Este artículo describe el inicio de las preocupaciones sanitarias vinculadas a las epidemias ocurridas durante el siglo XX en La Pampa, provincia argentina. Las epidemias, como las de la viruela, fueron un estímulo para estas políticas que frecuentemente tuvieron origen en Buenos Aires, la capital del país. El contagio de muchas epidemias dependía de carencias de infraestructura: agua, desagüe y desecho adecuado de basuras, de la ausencia de un número suficiente de trabajadores de salud, de la presencia de vectores transmisores de enfermedades como los mosquitos y, en última instancia, de la pobreza. La experiencia histórica descrita en este texto resalta la importancia de analizar el impacto del SARS-CoV-2 más allá de las grandes ciudades.


Abstract This article describes the emergence of health concerns relating to the epidemics that occurred during the twentieth century in La Pampa, a province in Argentina. Epidemics such as smallpox drove such policies, which frequently originated in Buenos Aires, the country's capital. The spread of many epidemics was due to shortages: water, sewage and adequate refuse disposal, an insufficient number of health care workers, the presence of disease transmission vectors such as mosquitos, and, ultimately, poverty. The historical experience described in this text highlights the importance of analyzing the impact of SARS-CoV-2 beyond the big cities.


Subject(s)
Humans , Animals , Male , Female , Child , History, 20th Century , Smallpox/history , Epidemics/history , COVID-19/history , Argentina/epidemiology , Poverty/history , Sewage , Water Supply/history , Smallpox/prevention & control , Smallpox/epidemiology , Indians, South American/history , Indians, South American/statistics & numerical data , Refuse Disposal/history , Vaccination/history , Vaccination/legislation & jurisprudence , Cities/history , Cities/epidemiology , Health Personnel/history , Health Personnel/statistics & numerical data , Disease Eradication/history , Disease Eradication/organization & administration , COVID-19/epidemiology , Health Policy/history , Health Policy/legislation & jurisprudence , Insect Vectors , Military Personnel/history
4.
Braz. j. biol ; 81(3): 665-673, July-Sept. 2021. tab, graf
Article in English | LILACS | ID: biblio-1153396

ABSTRACT

Abstract Educational interventions may trigger actions that contribute to prevent parasitic diseases, such as Chagas disease (CD). This study aimed at investigating the impact of an instructional video named "Documentary on Chagas Disease" on knowledge about CD and its vectors displayed by a population that lives in an endemic area in Brazil, so as to validate it as an educational tool. The video was shown to 226 subjects, divided into two groups. Group 1 was composed of users of Basic Health Units (BHU) in Pelotas and Pinheiro Machado, cities located in Rio Grande do Sul (RS) state, Brazil, where CD is endemic. Group 2 consisted of students who attend three public schools located in the rural area in Pinheiro Machado, RS. Two questionnaires with questions about their knowledge about triatomines and CD were applied, before and after the documentary was shown. After the video was shown, there was significant increase in individuals' knowledge (in both groups) about "kissing bugs", their notification, the disease and its prevention. Besides, watchers considered that the quality of the material was satisfactory. Since the "Documentary on CD" can be easily accessed on the internet and was effective in teaching the population that lives in endemic areas, its use should be encouraged in places and meetings connected to health that aim at fighting against triatominae and at exposing an updated view of CD.


Resumo Intervenções educacionais podem desencadear ações que contribuam para a prevenção de doenças parasitárias, como a doença de Chagas (DC). Este estudo teve como objetivo investigar o impacto de um vídeo instrucional denominado "Documentário Doença de Chagas" no conhecimento sobre DC e seus vetores exibidos a uma população que vive em área endêmica no Brasil, para validá-lo como uma ferramenta educacional. O vídeo foi exibido para 226 indivíduos, divididos em dois grupos. O grupo 1 foi composto por usuários das Unidades Básicas de Saúde (UBS) de Pelotas e Pinheiro Machado, cidades do estado do Rio Grande do Sul (RS), Brasil, onde a DC é endêmica. O grupo 2 foi formado por estudantes que frequentam três escolas públicas localizadas na zona rural de Pinheiro Machado, RS. Dois questionários com perguntas sobre conhecimentos sobre triatomíneos e DC foram aplicados, antes e depois da exibição do documentário. Após a exibição do vídeo, houve um aumento significativo no conhecimento dos indivíduos (em ambos os grupos) sobre "triatomíneos", sua notificação, a doença e sua prevenção. Além disso, os observadores consideraram que a qualidade do material era satisfatória. Como o "Documentário DC" pode ser facilmente acessado na Internet e ser eficaz no ensino à população que vive em áreas endêmicas, seu uso deve ser incentivado em locais e reuniões relacionadas à saúde, que visam combater os triatomíneos e exibir uma informação atualizada sobre a DC.


Subject(s)
Humans , Animals , Triatoma , Triatominae , Chagas Disease/epidemiology , Brazil/epidemiology , Insect Vectors
6.
Article in English | WPRIM | ID: wpr-887733

ABSTRACT

Pathogens like bacteria and protozoa, which affect human and animal health worldwide, can be transmitted by vectors like ticks. To investigate the epidemiology and genetic diversity of bacteria and protozoans carried by ticks in Chengmai county of Hainan province, China, 285 adult hard ticks belonging to two species [


Subject(s)
Anaplasmataceae/isolation & purification , Animals , Chaperonin 60/genetics , China , Citrate (si)-Synthase/genetics , Coccidia/isolation & purification , Coxiellaceae/isolation & purification , Insect Vectors/microbiology , Islands , Ixodidae/microbiology , Phylogeny , Piroplasmia/isolation & purification , RNA, Ribosomal, 16S/genetics , RNA, Ribosomal, 18S/genetics
7.
Rev. Soc. Bras. Med. Trop ; 54: e20200296, 2021. tab, graf
Article in English | ColecionaSUS, LILACS, ColecionaSUS, SES-SP | ID: biblio-1136922

ABSTRACT

Abstract INTRODUCTION: Triatomines are hematophagous insects that are important to public health since they are the vectors of American Trypanosomiasis. The objective of this study was to describe the occurrence of triatomines in homes in Cruzeiro do Sul, Acre, Brazil. METHODS The specimens were collected by an active search inside homes and also by a passive search by the residents. RESULTS: A total of 55 triatomines were captured comprising of 5 species each of the genera Rhodnius, Eratyrus, and Panstrongylus. No colonies were detected, ruling out the possibility of domiciliation. CONCLUSIONS: Information on regional epidemiological dynamics contributes to the prevention and control of disease.


Subject(s)
Animals , Panstrongylus , Rhodnius , Triatominae , Chagas Disease , Brazil , Insect Vectors
8.
Rev. Soc. Bras. Med. Trop ; 54: e00842020, 2021. tab, graf
Article in English | ColecionaSUS, LILACS, ColecionaSUS, SES-SP | ID: biblio-1143885

ABSTRACT

Abstract INTRODUCTION: Panstrongylus megistus is the main triatomine involved in the human transmission of Trypanosoma cruzi in Minas Gerais, Brazil. We analyzed the occurrence of triatomines in the Itaúna micro-regions for healthcare. METHODS: Data were collected as part of routine entomological surveillance activities, including the species identity, capture site, developmental stage, and trypanosome infection. RESULTS: In total, 503 specimens from five species were captured (495 P. megistus). Adults were mainly captured by residents inside their homes, whereas nymphs were mostly captured by public health professionals outside. CONCLUSIONS: The epidemiologically important triatomine, P. megistus, continues to persist in our study region.


Subject(s)
Humans , Animals , Panstrongylus , Trypanosoma cruzi , Chagas Disease/epidemiology , Brazil/epidemiology , Insect Vectors
9.
Rev. Soc. Bras. Med. Trop ; 54: e03302020, 2021. tab, graf
Article in English | ColecionaSUS, LILACS, ColecionaSUS, SES-SP | ID: biblio-1143883

ABSTRACT

Abstract INTRODUCTION: This communication reports on the occurrence of colonization by Panstrongylus megistus in an urban park in the municipality of São Paulo, Brazil. METHODS: Entomological research includes active search for vectors based on notifications by the population and identification and examination of insects. RESULTS: A colony of triatomines was found to be associated with enclosed birds. CONCLUSIONS: The occurrence of P. megistus has already been reported in the city of São Paulo; however, reports of colonization by this species provide evidence of its potential for the occupation of artificial ecotopes, which may pose a risk to the human population.


Subject(s)
Humans , Animals , Panstrongylus , Triatominae , Chagas Disease , Reduviidae , Brazil , Parks, Recreational , Insect Vectors
10.
Rev. Soc. Bras. Med. Trop ; 54: e00282020, 2021. tab, graf
Article in English | ColecionaSUS, LILACS, ColecionaSUS, SES-SP | ID: biblio-1143882

ABSTRACT

Abstract INTRODUCTION: We aimed to study intraspecific variation in Triatoma costalimai, a potential vector of Chagas disease present in Brazil and Bolivia. METHODS: We analyzed phenotypic (connexivum color patterns, wing morphometrics) and genetic variation (16S mtDNA) of three Brazilian T. costalimai populations. We compared 16S sequences with those of putative Bolivian T. costalimai and its sister species, T. jatai. RESULTS: Brazilian populations had different connexivum color patterns and forewing shapes. A 16S mtDNA haplotype network showed a clear separation of Brazilian T. costalimai from both T. jatai and Bolivian T. costalimai. CONCLUSIONS: We report considerable variability in T. costalimai populations.


Subject(s)
Animals , Triatoma/genetics , Chagas Disease , Genetic Variation/genetics , Bolivia , Brazil , Insect Vectors/genetics
11.
Mem. Inst. Oswaldo Cruz ; 116: e210015, 2021. tab, graf
Article in English | LILACS | ID: biblio-1250359

ABSTRACT

Chagas disease persists as one of the most important, and yet most neglected, diseases in the world, and several changes in its epidemiological aspects have been recorded since its discovery. Currently, some of the most relevant changes are related to: (i) the reduction in the incidence of the endemic due to the control of the most important vectors, Triatoma infestans and Rhodnius prolixus, in many countries; (ii) the migration of human populations spreading cases of the disease throughout the world, from endemic to non-endemic areas, transforming Chagas disease into a global threat; and (iii) new acute cases and deaths caused by oral transmission, especially in the north of Brazil. Despite the reduction in the number of cases, new challenges need to be responded to, including monitoring and control activities aiming to prevent house infestation by the secondary vectors from occurring. In 1979, Lent & Wygodzinsky(1) published the most complete review of the subfamily Triatominae, encompassing 111 recognised species in the taxon. Forty-two years later, 46 new species and one subspecies have been described or revalidated. Here we summarise the new species and contextualise them regarding their ecology, epidemiologic importance, and the obstacles they pose to the control of Chagas disease around the world.


Subject(s)
Humans , Animals , Triatoma , Trypanosoma cruzi , Triatominae , Chagas Disease/prevention & control , Chagas Disease/epidemiology , Brazil/epidemiology , Insect Vectors
12.
Mem. Inst. Oswaldo Cruz ; 116: e210056, 2021. tab, graf
Article in English | LILACS | ID: biblio-1250361

ABSTRACT

Vector-borne transmission of Chagas disease in urban areas of Argentina has been an overlooked phenomena. We conducted the first comprehensive cross-sectional study of domestic infestation with Triatoma infestans and vector infection with Trypanosoma cruzi in a metropolitan area of San Juan, Argentina. Our results document the occurrence of T. infestans infected with T. cruzi in human sleeping quarters. In this urban setting, we also show that infestation was associated with construction materials, the presence of chickens, cats and a large number of dogs that can provide blood meals for the vector. Our findings reveal new challenges for vectorial control agencies.


Subject(s)
Animals , Cats , Dogs , Triatoma , Trypanosoma cruzi , Chagas Disease , Argentina , Chickens , Cross-Sectional Studies , Insect Vectors
13.
Mem. Inst. Oswaldo Cruz ; 116: e200528, 2021. tab, graf
Article in English | LILACS | ID: biblio-1154881

ABSTRACT

Panstrongylus geniculatus (Latreille, 1811) is the triatomine with the largest geographic distribution in Latin America. It has been reported in 18 countries from southern Mexico to northern Argentina, including the Caribbean islands. Although most reports indicate that P. geniculatus has wild habitats, this species has intrusive habits regarding human dwellings mainly located in intermediate deforested areas. It is attracted by artificial light from urban and rural buildings, raising the risk of transmission of Trypanosoma cruzi. Despite the wide body of published information on P. geniculatus, many knowledge gaps exist about its biology and epidemiological potential. For this reason, we analysed the literature for P. geniculatus in Scopus, PubMed, Scielo, Google Scholar and the BibTriv3.0 databases to update existing knowledge and provide better information on its geographic distribution, life cycle, genetic diversity, evidence of intrusion and domiciliation, vector-related circulating discrete taxonomic units, possible role in oral T. cruzi transmission, and the effect of climate change on its biology and epidemiology.


Subject(s)
Humans , Animals , Panstrongylus/genetics , Panstrongylus/parasitology , Triatoma/parasitology , Trypanosoma cruzi/isolation & purification , Chagas Disease/transmission , Insect Vectors/parasitology , Panstrongylus/physiology , Phylogeny , Genetic Variation/genetics , Biology , Genes, Insect , Ecology , Genotype , Geography , Insect Vectors/genetics , Latin America
14.
Mem. Inst. Oswaldo Cruz ; 116: e200571, 2021. tab, graf
Article in English | LILACS | ID: biblio-1154878

ABSTRACT

Leishmania infantum chagasi is the causative agent and Lutzomyia longipalpis is the main vector of visceral leishmaniasis in the Americas. We investigated the expression of Leishmania genes within L. longipalpis after artificial infection. mRNAs from genes involved in sugar and amino acid metabolism were upregulated at times of high parasite proliferation inside the insect. mRNAs from genes involved in metacyclogenesis had higher expression in late stages of infection. Other modulated genes of interest were involved in immunomodulation, purine salvage pathway and protein recycling. These data reveal aspects of the adaptation of the parasite to the microenvironment of the vector gut and reflect the preparation for infection in the vertebrate.


Subject(s)
Animals , Psychodidae/parasitology , Leishmania infantum/genetics , Insect Vectors/parasitology , Leishmania/isolation & purification , Leishmaniasis, Visceral/transmission , Psychodidae/genetics , Brazil , Gene Expression , Reverse Transcriptase Polymerase Chain Reaction/methods , Leishmaniasis, Visceral/parasitology , Leishmaniasis, Visceral/epidemiology , Life Cycle Stages
15.
Rev. Soc. Bras. Med. Trop ; 54: e0586-2020, 2021. graf
Article in English | LILACS | ID: biblio-1155591

ABSTRACT

Abstract INTRODUCTION Visceral leishmaniasis (VL) transmission has been associated with two different populations of the Lutzomyia longipalpis complex in São Paulo state. METHODS In a recent focus of VL, we captured and dissected sand flies and investigated Leishmania infantum infection by parasitological, PCR, and sequencing analysis. RESULTS Flagellates were observed in 2 of 47 (4.2%) cembrene-1 Lu. longipalpis females. The sequences obtained matched those of Le. infantum. CONCLUSIONS We found that the transmission of Le. infantum by cembrene-1 females may occur at a high rate in this focus of VL and presented new data on the vector capacity of this population.


Subject(s)
Animals , Female , Psychodidae , Leishmania infantum , Leishmaniasis, Visceral , Brazil , Insect Vectors
16.
Rev. Soc. Bras. Med. Trop ; 54: e0471-2020, 2021. tab, graf
Article in English | LILACS | ID: biblio-1155586

ABSTRACT

Abstract INTRODUCTION: This communication reports the colonization of Panstrongylus megistus in an urban area of the municipality of Taboão da Serra in the metropolitan region of São Paulo. METHODS: After receiving a notification from the population, entomological research comprising active search, collection, identification, and examination of triatomines was conducted. Wild animals were captured and examined. RESULTS: A colony of triatomines was found to be associated with dogs in the backyard of the property. CONCLUSIONS: The colonization of P. megistus shows the potential for their occupation of artificial ecotopes, which may pose a risk to the human population.


Subject(s)
Animals , Dogs , Panstrongylus , Triatominae , Chagas Disease/veterinary , Didelphis , Brazil , Cities , Insect Vectors
17.
Rev. Soc. Bras. Med. Trop ; 54: e0530-2020, 2021. tab, graf
Article in English | LILACS | ID: biblio-1155545

ABSTRACT

Abstract INTRODUCTION: This retrospective study conducted from 2001 to 2018 investigated the residual foci of Triatoma infestans infestation in Rio Grande do Sul, Brazil. METHODS: The data were obtained via entomological surveillance and the distribution of vector occurrence. The coverage of active research was mapped. RESULTS: The largest coverage rate for active research was observed in the northwest region of the total of 515,081 domiciles researched. Most T. infestans specimens were captured in the peridomicile. CONCLUSIONS: Infestation has decreased significantly since 2008, and T. infestans has not been captured since 2015.


Subject(s)
Animals , Triatoma , Chagas Disease , Brazil , Retrospective Studies , Environment , Insect Vectors
18.
Hist. ciênc. saúde-Manguinhos ; 27(3): 741-761, set. 2020. tab, graf
Article in Portuguese | LILACS | ID: biblio-1134073

ABSTRACT

Resumo O artigo faz análise histórica da emergência da leishmaniose tegumentar americana como objeto do conhecimento e desafio médico-sanitário no Amazonas desde a década de 1970. Fornece visão geral dessa época, as medidas sanitárias e os estudos científicos realizados no contexto de implantação dos principais projetos de desenvolvimento regionais executados em nome da política de integração nacional do governo federal. Utiliza como metodologia a análise documental de leis, produção científica, relatórios de pesquisa, boletins epidemiológicos e jornais. Os resultados da pesquisa mostram que a doença surgiu no Amazonas associando o grande problema de saúde com mudanças político-econômicas e alterações socioambientais.


Abstract The history of the emergence of American cutaneous leishmaniasis in the Brazilian state of Amazonas since the 1970s is analyzed as an object of knowledge and a medical and public health challenge. An overview of the period is provided, including the public health measures and scientific studies undertaken in the context of the execution of large-scale regional developments pursued in the name of national integration by the federal government. The methodology uses documental analysis of laws, the scientific literature, research reports, epidemiological bulletins, and newspapers. The results show that American cutaneous leishmaniasis emerged as a major health problem in Amazonas in close association with the political, economic, and socioenvironmental changes seen in the period.


Subject(s)
Humans , Animals , Public Health/history , Leishmaniasis, Cutaneous/history , Conservation of Natural Resources , Leishmania/isolation & purification , Psychodidae/parasitology , Urbanization/history , Leishmania braziliensis/isolation & purification , Brazil/epidemiology , Insect Control/history , Leishmaniasis, Cutaneous/transmission , Leishmaniasis, Cutaneous/epidemiology , Leishmania guyanensis/isolation & purification , Industrial Development/history , Insect Vectors
19.
Rev. epidemiol. controle infecç ; 10(2): 94-99, abr.-jun. 2020. ilus
Article in Portuguese | LILACS | ID: biblio-1222337

ABSTRACT

Justificativa e Objetivos: os hospitais são locais propícios para a instalação e propagação de insetos, especialmente formigas. Essas, além da sua capacidade adaptativa, vivem em mutualismo com outros animais, como fungos e bactérias, o que confere risco elevado para infecções nosocomiais. O presente estudo teve como objetivo identificar a microbiota bacteriana associada com formigas intra-hospitalares na cidade de Anápolis, Goiás, e discutir o papel de tais agentes no desenvolvimento de infecções hospitalares e o consequente risco para indivíduos hospitalizados. Métodos: foram montadas armadilhas para formigas em dois hospitais da cidade de Anápolis a fim de capturá-las nos setores de enfermaria, unidade de terapia intensiva/semi-intensiva e nutrição. As armadilhas eram deixadas por um período pré-determinado nos respectivos setores e depois eram levadas ao Laboratório de Microbiologia da UniEvangélica para cultivo, semeadura e identificação bacteriana. Resultados: foram realizadas três coletas em cada um dos setores de cada instituição hospitalar. Foi possível isolar os seguintes microrganismos: Staphylococcus spp., bacilos Gram-positivos, Klebsiella ozaenae, K. rhinoscleromatis, Escherichia coli e Yersinia pseudotuberculosis. Conclusão: pode-se concluir que as formigas podem atuar como veículos para microrganismos. Esse fato sugere que podem favorecer o processo de infecção em usuários de assistência hospitalar. Entretanto, permanece incerto a relação entre população de formigas e incidência de infecções nos hospitais, sendo necessário realizar estudos para associar tais variáveis.(AU)


Background and Objectives: hospitals are prone environments for the establishment and spread of insects, especially ants. In addition to their adaptive capacity, ants live in mutualism with other living beings such as fungi and bacteria, which increases the risk of nosocomial infections. This study aimed to identify the bacterial microbiota associated with intrahospital ants in the city of Anápolis, Goiás, and to discuss the role of such agents in the development of nosocomial infections and consequent risk for hospitalized individuals. Methods: ant traps were set up in two hospitals in Anápolis to capture them in the ward sectors as well as the intensive or semi-intensive care units and the nutrition sectors. The traps were left for a predetermined period in the respective locations and were then taken to the UniEvangélica Microbiology Laboratory for culture, sowing and bacterial identification. Results: three collections were performed in each of the hospital sectors of each hospital institution. The following microorganisms could be isolated: Staphylococcus spp., Gram-positive bacilli, Klebsiella ozaenae, K. rhinoscleromatis, Escherichia coli and Yersinia pseudotuberculosis. Conclusion: we can conclude that ants can act as vessels for microorganisms. This fact suggests that ants may favor infections in the hospitals. However, the relationship between ant population and incidence of infections in hospitals remains uncertain, and studies are necessary to associate these variables.(AU)


Justificación y Objetivos: los hospitales son ambientes propicios para la instalación y propagación de insectos, especialmente hormigas. Además de su capacidad de adaptación, estos animales viven en mutualismo con otros, como los hongos y las bacterias, lo que confiere un alto riesgo de infecciones nosocomiales en los humanos. El presente estudio tuvo como objetivo identificar la microbiota bacteriana asociada con hormigas intrahospitalarias en la ciudad de Anápolis, Goiás, y analizar el papel de dichos agentes en el desarrollo de infecciones hospitalarias y el riesgo para las personas hospitalizadas. Métodos: se instalaron trampas para hormigas en dos hospitales de la ciudad de Anápolis para capturarlas en los sectores de enfermería, unidades de cuidados intensivos, de cuidados semiintensivos y nutrición. Las trampas se dejaron durante un período predeterminado en los sectores respectivos y después se las llevaron al Laboratorio de Microbiología UniEvangélica para su cultivo, siembra e identificación bacteriana. Resultados: se realizaron tres colectas en cada uno de los sectores hospitalarios de cada institución hospitalaria. Se pudieron aislar los siguientes microorganismos: Staphylococcus spp., bacilos Gram positivos, Klebsiella ozaenae, K. rhinoscleromatis, Escherichia coli y Yersinia pseudotuberculosis. Conclusiones: se concluye que las hormigas pueden servir como vehículos de microorganismos. Esto sugiere que pueden favorecer el proceso de infección a los usuarios de atención hospitalaria. Sin embargo, la relación entre la población de hormigas y la incidencia de infecciones en los hospitales sigue siendo incierta, y se necesitan más estudios para asociar estas variables.(AU)


Subject(s)
Animals , Ants , Bacteria , Cross Infection , Infection Control , Disease Vectors , Insect Vectors , Public Health , Microbiota , Hospitals
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