scholarly journals Triatominae fauna (Hemiptera: Reduviidae) in Mato Grosso do Sul, Brazil, and the influence of climatic elements on their populations.

2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Marlon Cominetti ◽  
Renato Andreotti

Introduction: The objective of this work was to study Triatomine fauna captured during the period from 2006–2014 in Mato Grosso do Sul and to investigate the influence of climatic elements on these populations by providing subsidies to guide vector control work in the state. Methods: We verified the natural infection rate, the abundance of classes, constancy, frequency and dominance, and the influence of climatic factors on the frequency of triatomine. Results: Of the 14,178 specimens collected, 2,118 (14.94%) were domiciliary, and 12,060 (85.06%) were peridomiciles. The rate of natural infection in Triatoma matogrossensis was 18.18%, followed by Rhodnius neglectus (0.46%) and Triatoma sordida (0.27%). Triatoma sordida was the most frequent species: constant, abundant and dominant. We observed the influence of climatic factors on the encounter of insects during the period from January to December and throughout the eight years of the study period. Climatic factors such as relative humidity affect the frequency of insects. Conclusions: Although Mato Grosso do Sul is considered free of endemic vector transmission by Triatoma infestans, the persistent encounter vectors naturally infected by Trypanosoma cruzi remain worthy of attention, and the information in this work may improve actions to combat the vector in the state better selecting the periods and favorable environmental conditions for control using insecticides, ensuring greater efficiency and decreasing the possibilities of the vector triatomine becoming resistant to the chemical agent.

2012 ◽  
Vol 45 (1) ◽  
pp. 60-65 ◽  
Author(s):  
Maria Beatriz Araújo Silva ◽  
Ana Virgínia Matos Sá Barreto ◽  
Helker Albuquerque da Silva ◽  
Cleber Galvão ◽  
Dayse Rocha ◽  
...  

INTRODUCTION: The present study shows a descriptive analysis of triatomine occurrence and its natural Trypanosoma infection rates in the state of Pernambuco, Brazil, between 2006 and 2007. METHODS: Entomological data for the species, such as specimens captured in both intra and peridomiciles and natural infection index, were obtained via domiciliary capture in 147 municipalities from 11 Regional Managements of Health. The database was obtained from a sample of insects (100% infected and 20% non-infected) sent to the Central Laboratory of Pernambuco. RESULTS: A total of 18,029 triatomines were analyzed from 138 municipalities of the state. Triatoma pseudomaculata (35%), Triatoma brasiliensis (34%), and Panstrongylus lutzi (25%) were the most captured species. These species also showed a widespread geographical distribution in the state. Panstrongylus megistus, Triatoma petrocchiae, Triatoma melanocephala, Triatoma sordida, Rhodnius nasutus, Rhodnius neglectus, and Triatoma infestans showed more limited geographical distribution and lower relative abundance. The parasitological research showed that 8.8% of the triatomines were naturally infected with flagellates morphologically similar to Trypanosoma cruzi and 91.3% of them were captured inside houses in 113 municipalities. P. lutzi showed the highest rates of natural infection. CONCLUSIONS: After the control of T. infestans, synanthropic species, such as T. brasiliensis, T. pseudomaculata, and P. lutzi, maintain the risk of T. cruzi transmission to humans in the state of Pernambuco. These species are widely distributed, and infected specimens have been found inside houses. Thus, an enhanced surveillance and vector control of Chagas disease is recommended in Pernambuco.


2020 ◽  
Vol 45 (2) ◽  
pp. 340-348
Author(s):  
James Lucas da Costa-Lima ◽  
Earl Celestino de Oliveira Chagas

Abstract—A synopsis of Dicliptera (Acanthaceae) for Brazil is presented. Six species are recognized: Dicliptera ciliaris, D. sexangularis, and D. squarrosa, widely distributed in South America; D. purpurascens, which ranges from the North Region of Brazil (in the state of Acre) to eastern Bolivia; D. gracilirama, a new species from the Atlantic Forest of northeastern Brazil; and D. granchaquenha, a new species recorded in dry and semideciduous forests in Bolivia and western Brazil, in the state of Mato Grosso do Sul. Furthermore, we propose new synonyms and designate lectotypes for eleven names. An identification key to the six accepted Dicliptera species in Brazil is provided.


Zootaxa ◽  
2021 ◽  
Vol 4933 (1) ◽  
pp. 98-112
Author(s):  
CLÁUDIO H. ZAWADZKI ◽  
GABRIELA NARDI ◽  
LUIZ FERNANDO CASERTA TENCATT

The menaced and poorly-known waters of the Bodoquena Plateau revealed a new resident, the stunning Hypostomus froehlichi sp. n., a large-sized armored catfish, which is finally described after more than twenty years since its discovery. The Bodoquena Plateau is drained by the rio Paraguay basin, and is located in the state of Mato Grosso do Sul, Brazil. The new species differs from its congeners on the Bodoquena crystalline waters by having teeth with morphological and numerical variation in adult specimens. There is a continuous range of specimens having about 20 thick and worn teeth to specimens having about 50 thin teeth with intact crowns and lanceolate main cusps. Additional diagnostic characters are: dentaries angled more than 90 degrees, dark blotches, one plate bordering supraoccipital, moderate keel along dorsal series of plates, usually two rows of blotches per interradial membrane on dorsal, pectoral and ventral fins, and by attaining comparatively large size. Hypostomus froehlichi seems to be endemic to the area of the Bodoquena Plateau, in rivers draining to the rio Miranda. The description of the new species reveals a potential conservation flagship species as it is one of the most seen and documented fish by visitors and divers in the clear waters from the touristic, though menaced, Bonito region in Brazil. 


2017 ◽  
Vol 107 (0) ◽  
Author(s):  
Guilherme D. P. Dornelles ◽  
Gustavo Graciolli ◽  
Anderson Odon ◽  
Marcelo O. Bordignon

ABSTRACT We described infracommunities, prevalence and mean intensity of infestation of ecotoparasite flies (Nycteribiidae and Streblidae) on bats in an ecotone area of Cerrado as predominant vegetation, with influence of Atlantic Forest, in the southeast of Mato Grosso do Sul. In 36 sampling nights between April 2015 and August 2016 (23,328 m².h), we captured 17 bat species, of which ten were infested, and 14 species of fly. The most abundant bats were the phyllostomids Artibeus planirostris (Spix, 1823), Glossophaga soricina (Pallas, 1776) and Carollia perspicillata (Linnaeus, 1758) and the most abundant flies were the streblids Trichobius longipes (Rudow, 1871), T. joblingi Wenzel, 1966 and Megistopoda aranea (Coquillett, 1899). Phyllostomus hastatus (Pallas, 1767) was the bat species that presented the highest infestation rate. Platyrrhinus lineatus (É. Geoffroy, 1810) and Desmodus rotundus (É. Geoffroy, 1810) were not infested. Besides that, the frequency of bats that were infested by a single species of fly was higher than the frequency of bats infested for two or more, and it may be a pattern.


2007 ◽  
Vol 49 (2) ◽  
pp. 119-122 ◽  
Author(s):  
João Cezar do Nascimento ◽  
Byanca Regina de Paiva ◽  
Rosely dos Santos Malafronte ◽  
Wedson Desidério Fernandes ◽  
Eunice Aparecida Bianchi Galati

The main purpose of this study was to investigate natural infection by Leishmania in phlebotomine females in a visceral-leishmaniasis focus in Antonio João county in Mato Grosso do Sul State, Brazil. Between June and October 2003, the digestive tracts of 81 females captured in Aldeia Campestre, Aldeia Marangatu and Povoado Campestre were dissected. The females were separated by species, location, area and date of capture into 13 groups and kept in ethanol 70%. To identify the Leishmania species using the PCR technique, amplifications of the ribosomal-DNA (rDNA) and mini-exon genes were analyzed. Of the 81 specimens, 77 (95%) were Lutzomyia longipalpis, making this the most common species; only one specimen of each of the species Brumptomyia avellari, Evandromyia cortelezzii, Evandromyia lenti and Nyssomyia whitmani was found. Trypanosomatids were identified in eight of the nine groups of Lutzomyia longipalpis (10.39%) one group from Aldeia Campestre, one from Aldeia Marangatu and six from Povoado Campestre; of the eight groups, one from Aldeia Marangatu and another, with promastigotes forms also confirmed by dissection (1.23%) from Povoado Campestre, were identified by PCR as Leishmania chagasi (2.6%). The other groups gave negative results. These findings indicate that there is a high risk of leishmaniasis transmission in this area.


2008 ◽  
Vol 50 (5) ◽  
pp. 265-268 ◽  
Author(s):  
Marilene Rodrigues Chang ◽  
Flávia Patussi Correia ◽  
Leonora Correa Costa ◽  
Paula Cristhina Niz Xavier ◽  
Durval Batista Palhares ◽  
...  

The incidence of Candida bloodstream infection has increased over the past years. In the Center-West region of Brazil, data on candidemia are scarce. This paper reports a retrospective analysis of 96 cases of Candida bloodstream infection at a Brazilian tertiary-care teaching hospital in the state of Mato Grosso do Sul, from January 1998 to December 2006. Demographic, clinical and laboratory data were collected from medical records and from the hospital's laboratory database. Patients' ages ranged from three days to 92 years, with 53 (55.2%) adults and 43 (44.8%) children. Of the latter, 25 (58.1%) were newborns. The risk conditions most often found were: long period of hospitalization, utilization of venous central catheter, and previous use of antibiotics. Fifty-eight (60.4%) patients died during the hospitalization period and eight (13.7%) of them died 30 days after the diagnosis of candidemia. Candida albicans (45.8%) was the most prevalent species, followed by C. parapsilosis (34.4%), C. tropicalis (14.6%) and C. glabrata (5.2%). This is the first report of Candida bloodstream infection in the state of Mato Grosso do Sul and it highlights the importance of considering the possibility of invasive Candida infection in patients exposed to risk factors, particularly among neonates and the elderly.


Author(s):  
Ludiele Souza CASTRO ◽  
Adriana de Oliveira FRANÇA ◽  
Eduardo de Castro FERREIRA ◽  
Günther HANS FILHO ◽  
Minoru German HIGA JÚNIOR ◽  
...  

2015 ◽  
Vol 110 (8) ◽  
pp. 1051-1057 ◽  
Author(s):  
Everton Falcão de Oliveira ◽  
Aline Etelvina Casaril ◽  
Nathália Lopes Fontoura Mateus ◽  
Paula Guerra Murat ◽  
Wagner Souza Fernandes ◽  
...  

2019 ◽  
Vol 13 ◽  
Author(s):  
Mayk Penze Cardoso ◽  
Marcos Antonio Ferreira Júnior ◽  
Elenilda De Andrade Pereira Gonçalves ◽  
Vanessa Giavarotti Taboza Flores ◽  
Élen Ferraz Teston ◽  
...  

RESUMOObjetivo: caracterizar epidemiologicamente os transplantes de córneas realizados no estado de Mato Grosso do Sul. Método: trata-se de estudo quantitativo, epidemiológico, de desenho transversal. Compor-se-á a amostra de estudo de forma censitária por todos os pacientes em fila de espera, os submetidos ao transplante de córneas e os doadores desse tipo de tecido no Estado de Mato Grosso do Sul. Realizar-se-á a coleta de dados por meio de três instrumentos elaborados para cada população distinta, com as variáveis de dados clínicos e epidemiológicos. Estabelecer-se-ão estatisticamente os padrões de distribuição e as frequências, bem como as medidas de tendência central, além da análise multivariada com aplicação de medidas de magnitude de efeito e associação, de acordo com a natureza de cada variável, a serem apresentados em forma de gráficos e tabelas. Resultados esperados: espera-se identificar as dificuldades encontradas no sistema estadual de transplante de córneas com foco no desenvolvimento de conceitos técnicos, de planejamento e organização do atendimento aos usuários em fila de espera, doadores e transplantados. Descritores: Transplante de Córnea; Doenças da Córnea; Retalhos de Tecido Biológico; Epidemiologia; Serviços de Saúde; Bancos de Olhos.ABSTRACTObjective: to make the clinical and epidemiological characterization of corneal transplants performed in the state of Mato Grosso do Sul. Method: this is a quantitative, epidemiological, cross-sectional study. A sample of the study will be collected in a census form for all patients in queue, those submitted to corneal transplantation and donors of this type of tissue in the State of Mato Grosso do Sul. Data collection will be performed by means of three instruments elaborated for each distinct population, with the variables of clinical and epidemiological data. Distribution patterns and frequencies as well as measures of central tendency will be statistically established, as well as multivariate analysis with application of magnitude of effect and association, according to the nature of each variable, to be presented in charts and tables. Expected results: it is hoped to identify the difficulties found in the state transplant system of corneal aimed at the development of technical concepts, planning and organization of care for waiting users, donors and transplanted patients. Keywords: Corneal Transplantation; Corneal Diseases; Biological Tissue Patchwork; Epidemiology; Health services; Eye Banks. Descriptors: Corneal Transplantation; Corneal Diseases; Free Tissue Flaps; Epidemiology; Health Services; Eye Banks.RESUMENObjetivo: caracterizar epidemiológicamente los trasplantes de córneas hechos en el estado de Mato Grosso do Sul. Método: trata-se de un estudio cuantitativo, epidemiológico, de diseño transversal. La muestra de estudio se compondrá de forma censal por todos los pacientes en cola de espera, los sometidos al trasplante de córneas y los donantes de ese tipo de tejido en el Estado de Mato Grosso do Sul. Se realizará la recolección de datos mediante tres instrumentos preparados para cada población distinta, con las variables de datos clínicos y epidemiológicos. Se establecerán estadísticamente los patrones de distribución y las frecuencias, así como las medidas de tendencia central, además del análisis multivariado con aplicación de medidas de magnitud de efecto y asociación, de acuerdo con la naturaleza de cada variable, que deberán presentarse en forma de gráficos y tablas. Resultados esperados: se espera identificar las dificultades encontradas en el sistema estatal de trasplante de córneas mirando el desarrollo de conceptos técnicos, de planificación y organización de la atención a los usuarios en cola de espera, los donantes y los trasplantados. Descriptores: Trasplante de Córnea; Enfermedades de Córnea; Colgajos Tisulares Libres; Epidemiología; Servicios de Salud; Bancos de Ojos.


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