Abstract:
:In visceral leishmaniasis, phlebotomine vectors are targets for control measures. Understanding the ecosystem of the vectors is a prerequisite for creating these control measures. This study endeavours to delineate the suitable locations of Phlebotomus argentipes with relation to environmental characteristics between endemic and non-endemic districts in India. A cross-sectional survey was conducted on 25 villages in each district. Environmental data were obtained through remote sensing images and vector density was measured using a CDC light trap. Simple linear regression analysis was used to measure the association between climatic parameters and vector density. Using factor analysis, the relationship between land cover classes and P. argentipes density among the villages in both districts was investigated. The results of the regression analysis indicated that indoor temperature and relative humidity are the best predictors for P. argentipes distribution. Factor analysis confirmed breeding preferences for P. argentipes by landscape element. Minimum Normalised Difference Vegetation Index, marshy land and orchard/settlement produced high loading in an endemic region, whereas water bodies and dense forest were preferred in non-endemic sites. Soil properties between the two districts were studied and indicated that soil pH and moisture content is higher in endemic sites compared to non-endemic sites. The present study should be utilised to make critical decisions for vector surveillance and controlling Kala-azar disease vectors.
journal_name
Mem Inst Oswaldo Cruzjournal_title
Memorias do Instituto Oswaldo Cruzauthors
Kesari S,Bhunia GS,Kumar V,Jeyaram A,Ranjan A,Das Pdoi
10.1590/s0074-02762011000500001subject
Has Abstractpub_date
2011-08-01 00:00:00pages
515-23issue
5eissn
0074-0276issn
1678-8060pii
S0074-02762011000500001journal_volume
106pub_type
杂志文章abstract::Lutzomyia (Lutzomyia) falquetoi, sp. nov. (Diptera: Psychodidae, Phlebotominae) is described from the state of Espírito Santo, Brazil. This new species belongs to the series longipalpis and is easily distinguished from the other members of this taxon by the presence of five well-developed spines and a pre-apical spini...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762007005000006
更新日期:2007-05-01 00:00:00
abstract::An increased plasma concentration of von Willebrand factor (vWF) is detected in individuals with many infectious diseases and is accepted as a marker of endothelium activation and prothrombotic condition. To determine whether ExoU, a Pseudomonas aeruginosa cytotoxin with proinflammatory activity, enhances the release ...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762012000600004
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Gene reporter-fluorescent cells have emerged as alternative method for drug screening. OBJECTIVE:Achievement of constitutive expression of fluorescent protein GFP by Leishmania braziliensis as alternative method for drug screening. METHODS:L. braziliensis-GFP was generated using Leishmania tarentolae pLEXS...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/0074-02760160237
更新日期:2017-02-01 00:00:00
abstract::In laboratory trials an aqueous solution of Piquerol A from Piqueria trinervia, collected in several regions of Mexico, showed a molluscicide action on the adults of eight different pulmonates snails species: Fossaria (Fossaria) humilis, F. (Bakerilymnaea) sp., Pseudosuccinea columella and Stagnicola attenuata from Me...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02761989000100007
更新日期:1989-01-01 00:00:00
abstract::Type I diabetes mellitus (insulin-dependent DM = IDDM) is a chronic disease characterized by specific destruction of pancreatic beta cells, resulting in an absolute lack of insulin. Immune mechanisms, genetic susceptibility, and environmental factors are all implicated in the pathogenesis of Type 1 diabetes. This stud...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762005000800010
更新日期:2005-12-01 00:00:00
abstract::We report the molecular characterization of a novel reiterated family of transcribed oligo(A)-terminated, interspersed DNA elements in the genome of Trypanosoma cruzi. Steady-state level of transcripts of this sequence family appeared to be developmentally regulated, since only in the replicative forms the parasite sh...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762003000100016
更新日期:2003-01-01 00:00:00
abstract::The phlebotomine sand flies Nyssomyia intermedia (Lutz & Neiva, 1912) and Nyssomyia neivai (Pinto, 1926) are very close and may be involved in the transmission of Leishmania spp. Ross, 1903 in Brazil. The biology of the first laboratory-reared generations of these species, descended from insects captured in Além Paraí...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762004000600011
更新日期:2004-10-01 00:00:00
abstract::From May to August 1999, we evaluated 401 patients from a pediatric hospital of Havana City. One group was composed of 113 patients with diarrhea admitted to the Gastroenterology ward and a second consisted of 288 patients without diarrhea, admitted for other reasons, and hospitalized within the same time period. Thre...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762003000400021
更新日期:2003-06-01 00:00:00
abstract::In Brazil, until 2004, the immunization policy against diphtheria involved childhood vaccination with no official routine booster dose administered after 15 years of age. This study assessed functional antibody levels against diphtheria among blood donors. A total of 140 blood samples were collected, and diphtheria an...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762006000400019
更新日期:2006-06-01 00:00:00
abstract::Mycobacterium fortuitum is a rapidly growing nontuberculous Mycobacterium that can cause a range of diseases in humans. Complications from M. fortuitum infection have been associated with numerous surgical procedures. A protective immune response against pathogenic mycobacterial infections is dependent on the granulom...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762010000500007
更新日期:2010-08-01 00:00:00
abstract::The aim of the present study was to identify specific markers that mirror liver fibrosis progression as an alternative to biopsy when biopsy is contraindicated, especially in children. After liver biopsies were performed, serum samples from 30 hepatitis C virus (HCV) paediatric patients (8-14 years) were analysed and ...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/0074-0276130139
更新日期:2013-11-01 00:00:00
abstract::Respiratory failure (RF) is the main cause of hospital admission in HIV/AIDS patients. This study assessed comorbidities and laboratory parameters in HIV/AIDS inpatients with RF (N = 58) in relation to those without RF (N = 36). Tuberculosis showed a huge relative risk and platelet counts were slightly higher in HIV/A...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/0074-02760200082
更新日期:2020-09-14 00:00:00
abstract::This is the first report on occurrence of Biomphalaria straminea in the district of São José de Almeida (municipality of Jaboticatubas) State of Minas Gerais, Brazil. The presence of B. glabrata and B. tenagophila had already been reported in this area. Such municipality is part of the metropolitan region of Belo Hori...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762002000900007
更新日期:2002-01-01 00:00:00
abstract::Given their medical and veterinary relevance, the members of the Pipiens Assemblage are a worldwide target of ecological research. The distribution of Culex pipiens s.s. and Cx. quinquefasciatus converge in Buenos Aires, Argentina, where hybrids have been detected. Each member of the assemblage exhibits a distinct eco...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/0074-02760160148
更新日期:2016-11-01 00:00:00
abstract::Chimpanzees are being used in the study of immune response to Plasmodium falciparum malaria pre-erythrocytic stages (MPES). Responses induced by immunisation with recombinant/synthetic antigens and by irradiated sporozoites are being evaluated in a model system that is phylogenetically close to humans and that is amen...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02761994000600023
更新日期:1994-01-01 00:00:00
abstract::The preferred food items of the slugs Laevicaulis alte and the snails Achatina fulica were used to prepare 'poison baits' by injecting the pesticides 'Rogor' and 'Nuvan' to kill these mollusc pests. The 'poison baits' prepared with Trichosanthes dioica and Lycopersicum esculentum were accepted by 100% individuals of b...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02761993000200019
更新日期:1993-04-01 00:00:00
abstract::The presence of transmitted human immunodeficiency virus (HIV)-1 drug-resistance (TDR) at the time of antiretroviral therapy initiation is associated with failure to achieve viral load (VL) suppression. Here, we report TDR surveillance in a specific population of men who have sex with men (MSM) in Belo Horizonte, Braz...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/S0074-0276108042013012
更新日期:2013-06-01 00:00:00
abstract::The anesthetic effect of some water-soluble anesthesic or narcotic drugs currently used in mice was tested in molluscs of the Biomphalaria genus. Sodium thiopental was very toxic to the snails resulting in high rates of mortality in all the treatment schedules tested. Cetamine base, at concentration of 0.25 mg/ml of w...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762001000300019
更新日期:2001-04-01 00:00:00
abstract::Tissue parasitism, inflammatory process (histologic methods) and sympathetic denervation (glyoxylic acid-induced histofluorescence for demonstration of catecholamines) were studied in the heart (atrium and ventricle) and the submandibular gland of rats infected with the Y strain of Trypanosoma cruzi. In the heart para...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02761989000400013
更新日期:1989-10-01 00:00:00
abstract::The lack of an experimental animal model for the study of dengue pathogenesis is a limiting factor for the development of vaccines and drugs. In previous studies, our group demonstrated the susceptibility of BALB/c mice to infection by dengue virus (DENV) 1 and 2, and the virus was successfully isolated in several org...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/0074-02760170208
更新日期:2018-02-05 00:00:00
abstract::To study changes in survival, in biological activities and behavior of planorbids submitted to increased hydrostatic pressure, we developed a technique using two transparent chambers and a hydraulic piston. The apparatus permitted renewal of the liquid medium without substantial variations in pressure, thus eliminatin...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02761988000100008
更新日期:1988-01-01 00:00:00
abstract::In this study we compared two polymerase chain reaction (PCR) methods using either 16S ribosomal RNA (rRNA) or 23S rRNA gene primers for the detection of different Leptospira interrogans serovars. The performance of these two methods was assessed using DNA extracted from bovine tissues previously inoculated with sever...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762012000100012
更新日期:2012-02-01 00:00:00
abstract::Cerebral malaria (CM) is a life-threatening complication of Plasmodium falciparum malaria that continues to be a major global health problem. Brain vascular dysfunction is a main factor underlying the pathogenesis of CM and can be a target for the development of adjuvant therapies for the disease. Vascular occlusion b...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章,评审
doi:10.1590/0074-0276140061
更新日期:2014-08-01 00:00:00
abstract::The study was set up to evaluate the impact of two commercial larvicide formulations, Bacillus thuringiensis serovar israelensis base (Bti) at 15 ppm/1 min and temephos at 0.03 ppm of active ingredient, used to control Simulium pertinax populations, on associated non-target entomofauna occupying the same breeding site...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762003000500019
更新日期:2003-07-01 00:00:00
abstract::A list of 41 Apoidea (Hymenoptera) type specimens deposited in the Entomological Collection of the Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil is presented. The types previously belonged to the Zikán and Schrottky private collections. A total of 11 holotypes and 30 paratypes are listed with their respective dat...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02761997000300009
更新日期:1997-05-01 00:00:00
abstract::Several parasitological studies carried out in El Salvador between 2000-2012 showed a higher frequency of acute cases of Chagas disease than that in other Central American countries. There is an urgent need for improved Chagas disease surveillance and vector control programs in the provinces where acute Chagas disease...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/0074-0276140416
更新日期:2014-04-01 00:00:00
abstract::India was affected by a major outbreak of chikungunya fever caused by Chikungunya virus (CHIKV) during 2006-2007. Kerala was the worst affected state during 2007 with a contribution of 55.8% suspected cases in the country. However, except for clinically reported case records, no systematic information is available on ...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762011000800003
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Occult hepatitis B virus (HBV) - characterized by the absence of detectable HBsAg in the presence of HBV DNA - represents a potential threat for blood safety. OBJECTIVES:This study was conducted with the aim to investigate the serological and molecular characterization of occult HBV infection (OBI) among bl...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/0074-02760200006
更新日期:2020-09-23 00:00:00
abstract::Two new species of the Culicoides paraensis species group, C. diversus Felippe-Bauer and C. peruvianus Felippe-Bauer, are described and illustrated based on female specimens from Amazonian region of Peru. A systematic key, table with numerical characters of females, and distribution of species of the C. paraensis grou...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02762003000800014
更新日期:2003-12-01 00:00:00
abstract::The transference of the genetic markers and the presence of DNA plasmidial in 240 cultures of Escherichia coli was investigated. The strains were originated from Waste Treatment Plant (inffluent and effluents) located in Ilha do Governador, Rio de Janeiro. By conjugation analysis, E. coli K 12 allowed the isolation of...
journal_title:Memorias do Instituto Oswaldo Cruz
pub_type: 杂志文章
doi:10.1590/s0074-02761988000100004
更新日期:1988-01-01 00:00:00