scholarly journals The presence of Lutzomyia longipalpis in a focus of American visceral leishmaniasis where the only proven vector is Lutzomyia cruzi. Corumbá, Mato Grosso do Sul State

2003 ◽  
Vol 36 (5) ◽  
pp. 633-634 ◽  
Author(s):  
Soraya Oliveira dos Santos ◽  
Jorge R. Arias ◽  
Marta de Paiva Hoffmann ◽  
Mara Beatriz Grotta Furlan ◽  
Wilson Francisco Ferreira ◽  
...  

The present communication reports the presence of Lutzomyia longipalpis in Corumbá, Mato Grosso do Sul, where the principal vector is Lutzomyia cruzi.

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.


Acta Tropica ◽  
2008 ◽  
Vol 107 (3) ◽  
pp. 238-241 ◽  
Author(s):  
Alessandra Gutierrez de Oliveira ◽  
Ana Maria Marassá ◽  
Cleide Aschenbrenner Consales ◽  
Maria Elizabeth Cavalheiros Dorval ◽  
Carlos Eurico Fernandes ◽  
...  

2012 ◽  
Vol 107 (3) ◽  
pp. 396-401 ◽  
Author(s):  
Everton Falcão de Oliveira ◽  
Elaine Araújo e Silva ◽  
Carlos Eurico dos Santos Fernandes ◽  
Antonio Conceição Paranhos Filho ◽  
Roberto Macedo Gamarra ◽  
...  

2012 ◽  
Vol 45 (5) ◽  
pp. 601-606 ◽  
Author(s):  
Júlia Cristina Maksoud Brazuna ◽  
Elaine Araujo e Silva ◽  
Júlio Maksoud Brazuna ◽  
Iara Helena Domingos ◽  
Neuma Chaves ◽  
...  

INTRODUCTION: This study sought to describe the profile and geographic distribution of reported cases of visceral leishmaniasis (VL) in the City of Campo Grande, State of Mato Grosso do Sul (MS), Brazil, from 2002 to 2009. METHODS: Human data were collected from the Brazilian National Information System for Notifiable Diseases. Canine cases and entomological data were obtained from the Information Service for Canine Visceral Leishmaniasis Control/Campo Grande, MS. RESULTS: A total of 951 records from 2002 to 2009 were investigated. The number of reported cases of VL in males was significantly higher (p < 0.0001) than that in females. The higher frequency observed among males was associated with age (p < 0.0001), which increased in individuals aged 40 years and older. The overall fatality rate was 7.4%. Entomological surveys conducted in 2006, 2007, and 2009 showed the insect vector Lutzomyia longipalpis to be present in all urban regions of the county. CONCLUSIONS: VL cases in humans and dogs, as well as in vectors, occurs in all urban regions of Campo Grande. Despite not observing tendencies of increase or reduction in the incidence of the disease due to aging, the major incidence in men is higher in those aged 40 years or above.


2006 ◽  
Vol 101 (8) ◽  
pp. 869-874 ◽  
Author(s):  
Alessandra Gutierrez de Oliveira ◽  
Eunice Aparecida Bianchi Galati ◽  
Orcy de Oliveira ◽  
Gilliard Rezende de Oliveira ◽  
Italo Alexander Cabello Espindola ◽  
...  

Acta Tropica ◽  
2008 ◽  
Vol 105 (1) ◽  
pp. 55-61 ◽  
Author(s):  
Alessandra Gutierrez Oliveira ◽  
Eunice Aparecida Bianchi Galati ◽  
Carlos Eurico Fernandes ◽  
Maria Elizabeth Cavalheiros Dorval ◽  
Reginaldo Peçanha Brazil

2013 ◽  
Vol 108 (8) ◽  
pp. 992-996 ◽  
Author(s):  
Paulo Silva de Almeida ◽  
Alan Sciamarelli ◽  
Paulo Mira Batista ◽  
Ademar Dimas Ferreira ◽  
Joao Nascimento ◽  
...  

2019 ◽  
Vol 40 (6Supl2) ◽  
pp. 3313
Author(s):  
Valéria Régia Franco Sousa ◽  
Álvaro Felipe de Lima Ruy Dias ◽  
Juliana Yuki Rodrigues ◽  
Mariana de Medeiros Torres ◽  
Janaína Marcela Assunção Rosa Moreira ◽  
...  

Visceral Leishmaniasis (VL) is a parasitic zoonosis expanding in Brazil. Several municipalities in the state of Mato Grosso including those on the river Cuiabá have reported the incidence of both human and canine cases and the identification of sandfly vector, Lutzomyia longipalpis and Lu. cruzi. Dogs are considered the main reservoir of Leishmania chagasi in the urban areas, hence, we devised a cross-sectional study aimed at assessing the prevalence of the infection in the dogs of riverside communities on Cuiabá River watershed by parasitological (parasitic isolation in culture), serological, and molecular methods. Of the 248 surveyed dogs, 24 were positive in enzyme linked immunosorbent assay (ELISA) or immunofluorescence antibody test (IFAT), with a prevalence of 9.7%. The riverside communities located in the town of Santo Antonio do Leverger displayed a higher prevalence of the disease than the cities of Cuiabá and Várzea Grande; however, the difference was not statistically significant (p > 0.05). Dogs born in the communities had a 3.24-fold higher risk of acquiring the infection. Promastigote were isolated in the axenic culture from the bone marrow samples and intact skin. Further, DNA of Leishmania sp. was detected in the bone marrow samples, lymph nodes, leukocyte cover, and skin of only one examined dog. These samples were sequenced and they showed 99% homology to L. infantum. To conclude, we observed a higher prevalence of infection in Riverside communities of Santo Antonio do Leverger and the confirmation of autochthony in these areas justifies the surveillance actions to minimise the risk of transmission within the riverine community itself, besides its dissemination to other areas by tourism.


2008 ◽  
Vol 24 (12) ◽  
pp. 2827-2833 ◽  
Author(s):  
Ana Lúcia Lyrio de Oliveira ◽  
Anamaria Mello Miranda Paniago ◽  
Marcos Antônio Sanches ◽  
Maria Elizabeth Cavalheiros Dorval ◽  
Elisa Teruya Oshiro ◽  
...  

The Brazilian city of Três Lagoas, Mato Grosso do Sul State, has experienced an urban outbreak of visceral leishmaniasis since 2000. In 2002, due to the increase in the number of cases, 46 families with cases of visceral leishmaniasis were studied to verify the prevalence of asymptomatic infection in household contacts. Indirect immunofluorescence and ELISA showed a 36.4% positive infection rate. There were no cases of symptomatic disease among these contacts. There was no statistically significant difference in gender or age. Median age was 21 years, and the 10-19-year age bracket was the most heavily affected (23%). As for family characteristics, no differences were observed in schooling or family income; most families (58.7%) owned their homes, which were built of masonry (97.8%) and had adequate infrastructure. All the families reported what were probably phlebotomine sand flies in the peridomicile. In conclusion, asymptomatic visceral leishmaniasis infection is frequent and occurs in both males and females, regardless of age.


2007 ◽  
Vol 40 (4) ◽  
pp. 420-425 ◽  
Author(s):  
Elaine Araujo e Silva ◽  
Renato Andreotti ◽  
Michael Robin Honer

O município de Campo Grande, Estado de Mato Grosso do Sul, Brasil, apresenta ocorrência de casos humanos e caninos de leishmaniose visceral desde 2002 e é classificado como área com transmissão intensa. O estudo foi realizado no período de maio de 2003 a abril de 2005, em parceria com a Fundação Nacional de Saúde e a Secretaria de Saúde do Estado, com o objetivo de conhecer o comportamento e a sazonalidade da espécie Lutzomyia longipalpis. As capturas foram realizadas com armadilhas luminosas, tipo CDC, em doze estações distribuídas na zona urbana. As estações com maior densidade situam-se na parte sul da cidade e a abundância relativa aumentou durante, ou logo após, as precipitações pluviométricas. Nos meses frios e secos a quantidade foi reduzida e a abundância relativa foi maior no peridomicílio. A borrifação com alphacypermetrina, em intervalos de quatro meses, contribuiu para a diminuição do vetor em três das quatro estações borrifadas e, das oito que não sofreram intervenção química, cinco tiveram aumento.


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