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Registros recuperados: 316
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The role of petals in development of grey mould in strawberries Trop. Plant Pathol.
Boff,Pedro; Kraker,Joop de; Gerlagh,Mathijs; Köhl,Jürgen.
Studies were conducted in annual crops of strawberry (Fragaria x ananassa) (cv. Elsanta to assess the relative importance of petals as an inoculum source of grey mould, caused by Botrytis cinerea and to identify during which period of flower and fruit development the presence of petals has a significant effect on development of grey mould on fruits. In 1998, the incidence of B. cinerea on flower parts was assessed, and the symptoms of grey mould on fruits were characterised with regards to their starting point. The incidence of B. cinerea on petals was 65-85% of those flowers that harboured B. cinerea. The starting point of symptoms was located underneath the sepals in 65-85% of fruits with grey mould, and petals were present at this site in about 50% of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Strawberries; Botrytis cinerea; Flower; Epidemiology; Inoculum source; Phenology.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582003000100011
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The role of research methodology in the rational use of technology in monitoring and preventing communication disorders Anais da ABC (AABC)
Chiari,Brasília M.; Goulart,Bárbara N. G..
Studies showing stronger scientific evidence related to speech, language and hearing pathology (SLP) have an impact on the prevention and rehabilitation of human communication and gained ground in SLP research agenda. In this paper we discuss some aspects and directions that should be considered for in-depth knowledge about speech, language and hearing needs in different population groups (age group, gender and other variables according to specific related disorders) for improved comprehensive care, successful efforts and effective use of financial and human resources. It is also discussed the decision making process for requesting complementary evaluations and tests, from routine to highly complex ones, that should be based on each test and/or procedure...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Communication disorders; Diagnosis of health situation; Epidemiology; Epidemiologic measurements; Needs assessment; Cost-effectiveness evaluation.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000300014
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Trachoma among the Yanomami Indians BJMBR
Paula,J.S.; Medina,N.H.; Cruz,A.A.V..
The Yanomami are one of the last primitive groups of Indians living in Brazil. They have almost no contact with other cultures. The epidemiology of eye disease among Yanomami is virtually unknown. For the first time, a trachoma survey was conducted among Yanomami Indians in the State of Amazonas near the Venezuelan border of the Brazilian rain forest. Ophthalmic examination was carried out on a total of 613 individuals (338 males and 275 females) from eight Yanomami villages along the Marauiá River located in the upper Rio Negro Basin. Age was classified into three categories (children, adults, and elderly) and trachoma was classified into five grades: follicular, inflammatory intense, cicatricial, trichiasis, and corneal opacity. Trachoma was endemic in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Trachoma; Yanomami; Epidemiology.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002001000007
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Traitement à haute température des huîtres infectées par l’ostreid herpesvirus 1 (OsHV-1). TEMPO - Rapport 2016 ArchiMer
Pernet, Fabrice.
Le naissain d’huître creuse Crassostrea gigas est touché chaque année depuis 2008 par des mortalités causées par un microvariant de l’ostreid herpesvirus 1 (OsHV-1 μVar). Plusieurs études montrent que ces évènements de mortalité se produisent préférentiellement lorsque la température de l’eau est comprise entre 16°C et 24°C. Par conséquent, une exposition rapide des huîtres infectées par OsHV-1 à des températures supérieures à 24°C pourrait limiter les mortalités causées par le virus. Il est proposé de (1) vérifier l’hypothèse selon laquelle l’exposition à haute température réduit la mortalité des huîtres infectées par OsHV-1, et (2) déterminer si les animaux qui ont survécu suite à l’infection par OsHV-1 et au traitement thermique sont...
Tipo: Text Palavras-chave: Epidémiologie; Huître; OsHV-1; Risque; Survie; Température; Epidemiology; Oysters; OsHV-1; Risk; Survival; Temperature.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00434/54574/55953.pdf
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Trends and predictors of HIV-1 acquired drug resistance in Minas Gerais, Brazil: 2002–2012 BJID
Duani,Helena; Aleixo,Agdemir Waleria; Tupinambás,Unaí.
Abstract Several studies show that the prevalence of multidrug-resistant HIV-1 virus is declining over time. A retrospective cohort study was carried out to evaluate the trends of drug resistance in antiretroviral treatment-exposed individuals in a state of a middle-income country, Minas Gerais, southeast region of Brazil. We analyzed 2115 HIV-1 sequences from 2002 up to 2012, from 52 cities of Minas Gerais. The groups were analyzed according to the definitions: "IAS – 3 class mutations", if ≥1 drug resistance mutation from IAS 2015 list (DRM) was present in each class; "No fully susceptible drugs" as the absence of any fully susceptible drug in Stanford algorithm; and "GSS ≥ 2″, when a maximum calculated GSS (genotypic susceptibility score) was ≥2 or ≥3,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: HIV; Antiretroviral; Resistance; Genotyping; Epidemiology.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000200148
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Trends in the Pattern of Facial Fractures in Different Countries of the World International Journal of Morphology
Shayyab,Mohammad; Alsoleihat,Firas; Ryalat,Sukaina; Khraisat,Ameen.
The aim of the present study was to examine the changes in the pattern of maxillofacial fractures between developed and developing countries over two time periods; (1987-1999) and (2000-2007). A comprehensive search of the literature using PubMed was conducted for publications on maxillofacial injuries published during the last 20 years. Only 45 articles met the inclusion criteria and the full-texts of these articles were thoroughly examined. For each of the included studies, different parameters were recorded. Calculated "weighed" percentages of each parameter across the total number of all patients were performed. The mandible was the most frequently fractured facial bone (57%). In the total period, the mean age of patients with facial fractures was 24.4...
Tipo: Journal article Palavras-chave: Epidemiology; Maxillofacial fracture; Mandibular fracture; Road traffic accident.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000200065
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Trichosporon species isolated from the perigenital region, urine and catheters of a Brazilian population BJM
Silvestre Junior,Agenor Messias; Miranda,Mauricio Alexandre Bandeira Rampazzo; Camargo,Zoilo Pires de.
The present study aimed to 1) determine the colonization rates of medically important Trichosporon species on normal perigenital skin and 2) determine the isolation rates of Trichosporon spp. isolated from the urine and catheters of Brazilian patients hospitalized in the Intensive Care Unit (ICU). The overall colonization rate of Trichosporon spp. was 11.15% (112 isolates). The most common species isolated from normal perigenital skin was T. cutaneum (29.46%), followed by T. asteroides (20.53%), T. ovoides (15.17%), T. inkin (10.71%), T. mucoides (8.92%), and T. asahii (6.25%). From urine and catheters, T. asahii was the species most commonly isolated (76.5%; n =23), followed by T. inkin (16.6%; n = 5) and T. asteroides (6.6%; n = 2). In addition, the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Trichosporon spp.; Epidemiology; Perigenital skin; Superficial mycosis.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300013
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Trypanosoma cruzi Chagas, 1909: genetic variability of isolates from chronic chagasic patients in the Paraná state, Brazil BABT
Kopp,Rogério Luiz; Miyazaki,Márcia; Thomaz-Soccol,Vanete.
The present work had as objective to verify the genetic diversity among strains of Trypanosoma cruzi isolated in chronic chagasic patients in the Paraná state. Fifty patients with compatible clinical symptoms were selected (cardiopathy, megacolon and/or megaesophagus) and that presented positive serological reaction to T. cruzi. Six strains of the protozoan were isolated in hemoculture and identified by electrophoresis in starch thick gel with aid of 14 isoenzymes (6PGD; G6PD; ME¹; ME²; ICD; PGM; GPI; GOT¹; GOT²; NP¹; NP²; DIA; MPI and FH). The statistical analysis were accomplished by the softwares NTSYs and UPGMA. Eighty-four electromorphs were individualized and four isoenzymes (ICD, GPI, 6PGD, e PGM) showed compatibility for heterozygosis. The phenetic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Trypanosoma cruzi; Multilocus enzyme electrophoresis; Chagas disease; Epidemiology; Phenetic analysis.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000300009
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Tuberculosis in Brazil: last ten years analysis - 2001-2010 BJID
Oliveira,Gisele Pinto de; Torrens,Ana Wieczorek; Bartholomay,Patrícia; Barreira,Draurio.
OBJECTIVE: To describe tuberculosis epidemiological situation in Brazil, as well as program performance indicators in 2001-2010 period, and discuss the relationship between changes observed and control measures implemented in this century first decade. METHODS: It is a descriptive study, data source was the Information System for Notifiable Diseases (Sinan), Mortality Information System (SIM), Unified Health System Hospital Information System (SIH/SUS) and TB Multidrug-resistant Surveillance System (MDR-TB/SS). Indicators analyzed were organized into four major groups: TB control program (TCP) coverage and case detection; morbidity; treatment and TCP performance; and mortality. RESULTS: In the years analyzed there was a decrease in the number of new cases...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tuberculosis; Epidemiology; Surveillance; Information system; Data quality.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000200016
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Uncommon non-oncogenic HPV genotypes, TP53 and MDM2 genes polymorphisms in HIV-infected women in Southern Brazil BJID
Entiauspe,Ludmila Gonçalves; Seixas,Fabiana Kömmling; Nunes,Emily Montosa; Rodrigues,Fernanda Martins; Dellagostin,Odir A.; Collares,Tiago; Silveira,Mariângela Freitas da.
Background:It is believed that Human Papillomavirus (HPV) and Human Immunodeficiency Virus coinfection contributes to increase the risk for cervical intraepithelial injuries. Several factors may contribute to cervical cancer (CC) development, including genetic variants such as TP53and MDM2 gene polymorphisms.Materials and methods:A hundred HIV-infected women were examined for HPV detection and its genotypes, as well as the frequencies of the SNPs Arg72Pro and SNP309 and their associations with CC risk factors. Nested Polymerase Chain Reaction (nPCR) was used for HPV detection and PCR-RFLP for TP53 and MDM2 SNP309 genotyping.Results:HPV DNA was detected in 68% of samples. A higher frequency of low-risk HPV genotypes (66.7%) was observed when compared to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: HPV infection; HIV infection; Cervical cancer; Epidemiology.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000600643
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Viper bites complicate chronic agrochemical nephropathy in rural Sri Lanka J. Venom. Anim. Toxins incl. Trop. Dis.
Silva,Anjana; Samarasinghe,Rivikelum; Pilapitiya,Senaka; Dahanayake,Niroshana; Siribaddana,Sisira.
Snakebite is a common occupational health hazard among Sri Lankan agricultural workers, particularly in the North Central Province. Viperine snakes, mainly Russell’s viper envenomation, frequently lead to acute renal failure. During the last two decades, an agrochemical nephropathy, a chronic tubulointerstitial disease has rapidly spread over this area leading to high morbidity and mortality. Most of the epidemiological characteristics of these two conditions overlap, increasing the chances of co-occurrence. Herein, we describe four representative cases of viperine snakebites leading to variable clinical presentations, in patients with chronic agrochemical nephropathy, including two patients presented with acute and delayed anuria. These cases suggest the...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Snakebite; Chronic kidney disease; Agricultural nephropathy; Epidemiology; Anuria.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992014000200505
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Viral Hepatitis C in a leading Brazilian hospital: epidemiological factors and genotyping BJM
Bezerra,Cristianne S.; Lima,José M.C.; Vilar,Janaina L.; Moreira,José L.B.; Frota,Cristiane C..
The hepatitis C virus (HCV) is classified into six different genotypes and their distribution is different throughout the world. Epidemiologic studies are important to determine several characteristics of the virus, as well as the disease. This study analysed the prevalence of HCV and its genotypes among patients from a leading hospital in Ceará, which is located in Northeast Brazil. A total of 119 anti-HCV-seropositive patients, each having previously completed a questionnaire about risk behaviours related to HCV infection were tested for HCV infection using a qualitative HCV polymerase chain reaction (PCR) assay and genotyping by restriction fragment length polymorphism (RFLP). The detection was based on amplifying of the non-coding 5' region. Of the 119...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hepatitis C virus; Genotypes; Epidemiology; Northeast Brazil; Viral hepatitis.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000400014
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Western blot seroindeterminate individuals for Human T-lymphotropic Virus 1/2 (HTLV-1/2) in Fortaleza (Brazil): a serological and molecular diagnostic and epidemiological approach BJID
Santos,Terezinha de Jesus Teixeira; Costa,Carlos Maurício de Castro; Goubau,Patrick; Vandamme,Anne-Mieke; Desmyter,Jan; Van Dooren,Sonia; Mota,Rosa M. S.; Costa,Francine Bovy de Castro; Oliveira,Ana C. S.; Gomes,Vânia Barreto A.F.; Carneiro-Proietti,Anna B.; Bruin,Veralice Meireles Sales de; Sousa,Francisca C. F. de; Oriá,Reinaldo Barreto.
How to handle Western blot (WB) seroindeterminate individuals for Human T-lymphotropic Virus 1/2 (HTLV-1/2) constitutes a challenge for blood banks and fam ilies. We made a cross-sectional study of 191 enzyme linked immunoassay (EIA) reactive individuals from the hematological center (HEMOCE) of Fortaleza (Brazil), examining their serological (WB) and molecular (PCR) diagnosis, and demographic profiles, as well as a possible association of their condition with other infectious pathologies and risk factors. Ethical institutional approval and personal consent were obtained. Out of 191 EIA reactive individuals, 118 were WB seroindeterminate and 73 were seropositive for HTLV-1/2. In the PCR analysis of 41 WB seroindeterminate individuals, 9 (22%) were positive...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Epidemiology; PCR; HTLV-1/2; Seroindeterminate individuals; Hepatitis; Syphilis; Blood transfusion.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702003000300005
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Why are the rates of cesarean section in Brazil higher in more developed cities than in less developed ones? BJMBR
Ribeiro,V.S.; Figueiredo,F.P.; Silva,A.A.M.; Bettiol,H.; Batista,R.F.L.; Coimbra,L.C.; Lamy,Z.C.; Barbieri,M.A..
The objective of the present study was to investigate factors associated with cesarean sections in two cities located in different regions of Brazil and to determine factors that explain the higher cesarean section rate in the more developed city, Ribeirão Preto, compared to the less developed one, São Luís. Data from two cohort studies comprising 2846 women in Ribeirão Preto in 1994, and 2443 women in São Luís in 1997/1998 were used. Adjusted and non-adjusted risk estimates were calculated using a Poisson regression model. The cesarean section rate was 33.7% in São Luís and 50.8% in Ribeirão Preto. Adjusted analysis in a joint sequential model revealed a 51% higher risk of cesarean section in Ribeirão Preto compared to São Luís (prevalence rate ratio...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cesarean section; Epidemiology; Obstetrics; Health services; Risk factors.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000900008
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Will Mayaro virus be responsible for the next outbreak of an arthropod-borne virus in Brazil? BJID
Esposito,Danillo Lucas Alves; Fonseca,Benedito Antonio Lopes da.
Abstract Mayaro virus is an alphavirus from the Togaviridae family and is transmitted mainly by Hemagogus mosquitoes. This virus circulates in high-density tropical forests or rural areas of Central and South America causing a disease characterized by high-grade fever, maculopapular skin rash and marked arthralgia that, in some patients, can persist for long periods after infection and may be misinterpreted as chikungunya. Although only a few outbreaks involving this virus have been reported, in the last years the number of Mayaro virus infections has increased in the central and northern regions of Brazil. In this review, we describe the reported prevalence of this infection over the years and discuss the circumstances that can contribute to the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mayaro virus; Alphavirus; Chikungunya virus; Epidemiology; Outbreaks.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000500540
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Yellow fever in Africa and the Americas: a historical and epidemiological perspective J. Venom. Anim. Toxins incl. Trop. Dis.
Chippaux,Jean-Philippe; Chippaux,Alain.
Abstract Yellow fever was transported during the slave trade in the 15th and 16th centuries from Africa to the Americas where the virus encountered favorable ecological conditions that allowed creation of a sustainable sylvatic cycle. Despite effective vector control and immunization programs for nearly a century, yellow fever epidemics reemerged in many Latin American countries, particularly Brazil. The emergence or reemergence of vector-borne diseases encompasses many intricate factors. Yellow fever outbreaks occur if at least three conditions are fulfilled: the introduction of the virus into a non-immune human community, presence of competent and anthropophilic vectors and insufficiency of prevention and/or adequate management of the growing outbreak....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Yellow fever; Aedes aegypti; Haemagogus sp.; Sabethes sp. Vector; Arbovirus; Epidemiology; Brazil; Latin America; Africa.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992018000100207
Registros recuperados: 316
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