Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 17
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Clinical and microbiological implications of invasive pneumococcal disease in hospitalized patients (1998–2013) BJID
Medeiros,Marta Inês Cazentini; Negrini,Bento Vidal de Moura; Silva,Jorgete Maria e; Almeida,Samanta Cristine Grassi; Guerra,Maria Luiza Leopoldo Silva; Andrade,Denise de.
Abstract Introduction Infections caused by Streptococcus pneumoniae (pneumococcus) still represent a challenge for health systems around the world. Objective The objective of this study was to assess microbiological and clinical aspects in hospitalized patients with invasive pneumococcus disease between 1998 and 2013. Materials and methods This was a retrospective study that analyzed the results of pneumococcus identification, serotyping, and susceptibility testing found in the Adolfo Lutz Institute databank. Personal variables, medical history and clinical outcome of patients admitted with invasive pneumococcal disease were analyzed. These were obtained from records of a public teaching hospital – Hospital das Clínicas Faculdade de Medicina Ribeirão...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Streptococcus pneumoniae; Serotypes; Death; Comorbidity.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000300004
Imagem não selecionada

Imprime registro no formato completo
Community acquired pneumonia among pediatric outpatients in Salvador, Northeast Brazil, with emphasis on the role of pneumococcus BJID
Nascimento-Carvalho,Cristiana M.C.; Lopes,Antônio A.; Gomes,Maria Daniela B.S.; Magalhães,Morgana P.; Oliveira,Juliana R.; Vilas-Boas,Ana Luisa; Ferracuti,Roberta; Brandileone,Maria Cristina C.; Guerra,Maria Luiza L.S.; Alves,Noraney N.; Athayde,Ledilce A.; Caldas,Renilza M.; Barberino,Maria Goreth M. A.; Duarte,Jussara; Brandão,Maria Angélica S.; Rocha,Heonir; Benguigui,Yehuda; Di Fabio,José Luis.
Pneumonia is one of the leading causes of hospitalization and death among children in developing countries, and mortality due to pneumonia has been associated with S. pneumoniae infection. This investigation was designed to describe the antimicrobial susceptibility and serotype patterns of pneumococcal strains recovered from the blood of children with community-acquired pneumonia (CAP) and to assess the clinical findings of pneumococcal bacteremic patients with pneumonia. In a 26 month prospective study, blood cultures were obtained as often as possible from children (<16 years of age) diagnosed with CAP in two emergency rooms. Antimicrobial drug susceptibility tests and serotyping were performed when pneumococcus was identified. We studied 3,431 cases...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Streptococcus pneumoniae; Antimicrobial resistance; Serotypes; Blood culture; Community-acquired pneumonia; Children.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702001000100003
Imagem não selecionada

Imprime registro no formato completo
EXPERIMENTAL MODEL OF CANDIDA ALBICANS (SEROTYPES A AND B) ADHERENCE IN VITRO BJM
Pires,Maria de Fátima Costa; Corrêa,Benedito; Gambale,Walderez; Paula,Claudete Rodrigues.
The adherence of Candida albicans is considered an important virulence factor since it determines the colonization of the yeast in various regions of the host, being the initial cause of the infection. In this work we studied the adherence of C. albicans (serotypes A and B) to HeLa and Vero cells after culture for 18 h and 30 h in chemically defined medium (YNB) plus carbohydrate sources such as glucose, sucrose, maltose, galactose and mannose (500 mM). Each assay was performed in triplicate. The best results were obtained with the medium containing glucose. The adherence was greatest in 18 h cultures at 37ºC and at 1 h contact time. The interaction of yeast cells with the host cells was studied by scanning microscopy.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Candida albicans; Adherence; Serotypes.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000300001
Imagem não selecionada

Imprime registro no formato completo
Extended serotyping scheme for <i>Vibrio anguillarum</i> with the definition and characterization of seven provisional O-serogroups OMA
Pedersen, K.; Grisez, L.; van Houdt, R.; Tiainen, T.; Ollevier, F.P.; Larsen, J.L..
The present paper summarizes the serotyping scheme of the fish pathogenic bacterium <i>Vibrio anguillarum</i> and defines seven additional O-serogroups. Strains, collected in our laboratories that were nontypable with antisera against the previously defined 16 O-serotypes, were used for generating new antisera and were characterized further by means of LPS profiles, Western blots, and serological reactions. On the basis of the results, it is suggested that the seven new O-serogroups are to be included in the existing serotyping system as serotypes O17-O<sub>2</sub>3. However, the existence of further <i>V. anguillarum</i> strains that were not typable with any of the 23 O-antisera suggested the existence of additional...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacterial diseases; Fish diseases; Pathogenic bacteria; Pathogens; Serological studies; Serotypes; Strains; Vibrio anguillarum.
Ano: 1999 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=9525
Imagem não selecionada

Imprime registro no formato completo
Frequency, serotyping and antimicrobial resistance pattern of Salmonella from feces and lymph nodes of pigs. Repositório Alice
GUERRA FILHO, J. B. P.; YAMATOGI, R. S.; POSSEBON, F. S.; FERNANDES, S. A.; TIBA-CASAS, M. R.; LARA, G. H. B.; RIBEIRO, M. G.; PINTO, J. P. A. N..
Salmonellosis is a foodborne disease caused by bacteria of the genus Salmonella, being pigs and pork-products potentially important for its occurrence. In recent decades, some serovars of Salmonella have shown increase of resistance to conventional antimicrobials used in human and animal therapy, with serious risks for public health. The aim of this study was to evaluate feces (n=50), mediastinal (n=50), mesenteric (n=50) and mandibular (n=50) lymph nodes obtained from slaughter houses for Salmonella spp. Positive samples were serotyped and subjected to an in vitro antimicrobial susceptibility test, including the extended-spectrum beta-lactamase (ESBL) production. Salmonella species were identified in 10% (20/200) of total samples. From these, 20% (10/50)...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Serotyping antimicrobial resistance; Multidrug-resistant; Sorotipagem; Resistência; Antimicrobiano; Linfonodo; Multidroga resistente; Sorovar; Salmonella; Isolamento; Fezes; Suíno; Epidemiologia; Salmonella; Feces; Lymph nodes; Swine; Pork; Epidemiology; Serotypes.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1064289
Imagem não selecionada

Imprime registro no formato completo
Molecular identification of enteropathogenic Escherichia coli (EPEC) associated with infant diarrhea in Londrina, Parana, Brazil BJM
Kobayashi,Renata K. T.; Saridakis,Halha Ostrensky; Dias,Angela M.G.; Vidotto,Marilda C..
In this work, the prevalence of enteropathogenic Escherichia coli (EPEC) in children in Londrina-PR, Brazil, was evaluated by means of digoxigenin-labelled DNA probes which identify the plasmid responsible for EPEC adherence factor (EAF), and virulence genes for EPEC as bundle-forming pilus (bfp) and E. coli attaching-effacing factor (eae). In addition, the isolated strains were serotyped and tested for adherence to HEp-2 cells. From 102 children with diarrhoea, 19 strains hybridized with at least one probe, and eleven of them were identified as typical EPEC because they hybridized with the three probes used, showed a localized adherence (LA) pattern, and presented no genes for enterotoxins (ST and LT) or invasion as detected by PCR. Six of the typical...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enteropathogenic Escherichia coli; EPEC; Digoxigenin-labelled DNA probes; Virulence factors; Serotypes; Diarrhoea.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000400007
Imagem não selecionada

Imprime registro no formato completo
Pheno- and genotypic characterization of Listeria monocytogenes clinical isolates from the southwestern region of the State of São Paulo, Brazil BJM
Lemes-Marques,Eneida Gonçalves; Cruz,Cristina Durante; Destro,Maria Teresa.
Considering the lack of information available in Brazil concerning listeriosis, the present study aimed to analyze phenotypic and genotypically Listeria monocytogenes clinical isolates from the Southwestern region of the State of São Paulo, Brazil. From January 1995 to May 2005, thirteen isolates of L. monocytogenes from twelve patients with listeriosis were sent to the Adolfo Lutz Institute (Campinas Regional Laboratory, São Paulo, Brazil). The antimicrobial susceptibility of the isolates was evaluated by the microdilution broth method for ampicillin, gentamicin, trimethoprim, sulfamethoxazole and vancomycin. They were also serotyped (Denka Seiken, Japan), and sub-typed by PFGE employing ApaI and AscI and the American CDC protocol. None of the isolates...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Listeria monocytogenes; Serotypes; Antibiotic resistance; Genotypic characterization; Listeriosis.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000200019
Imagem não selecionada

Imprime registro no formato completo
Phenotypic and genotypic characterization of Streptococcus agalactiae in pregnant women: first study in a province of Argentina BJM
Oviedo,P; Pegels,E; Laczeski,M; Quiroga,M; Vergara,M.
Group B Streptococcus (GBS) is the leading cause of neonatal infections. Our purpose was to characterize GBS colonization in pregnant women, current serotypes, resistance phenotypes and genes associated with virulence. In Misiones, Argentina, there are no previous data on this topic. Vaginal-rectal swabs from 3125 pregnant women were studied between 2004 and 2010. GBS strains were identified by conventional and serological methods (Phadebact Strep B Test, ETC International, Bactus AB, Sweden). Serotypes were detected using Strep-B Latex (Statens Serum Institut, Denmark). Resistance phenotypes were determined by the double-disk test. Genes were studied by PCR. Maternal colonization was 9.38%. Resistance to erythromycin was 11.6%, and the constitutive...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Colonization; Serotypes; Phenotypes; Virulence genes.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100036
Imagem não selecionada

Imprime registro no formato completo
Potential use of molecular-typing methods for the identification and characterization of salmonella enterica serotypes isolated in the poultry production chain Rev. Bras. Ciênc. Avic.
Baratto,CM; Gelinski,JMLN; Bernardi,AZ; Marafon,A; Braun,F.
Salmonella is widespread in nature and can be found in all links of the poultry production chain. Due to its high impact on meat processing, techniques for the rapid detection and reproducible characterization of Salmonella serotypes in foods are needed. The present study investigated the potential of molecular profiling to identify and differentiate 15 Salmonella serotypes isolated from the poultry production chain, based on 5 primers by random amplified polymorphic DNA (RAPD), enterobacterial repetitive intergenic consensus (ERIC-PCR), amplification of rDNA internal spacer analysis (RISA), and amplified ribosomal DNA restriction analysis (ARDRA) of 16S-23S rRNA internal spacer region (ISR) cleaved with Alu I and Hha I restriction enzymes. Three isolates...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Molecular analysis; Salmonella; Serotypes; Typing.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000300003
Imagem não selecionada

Imprime registro no formato completo
Prevalence and antimicrobial susceptibility of Salmonella serotypes in patients from Ribeirão Preto, São Paulo, Brazil, between 1985 and 1999 BJID
Castro,Fabíola Attié de; Santos,Vanda Roseli dos; Martins,Carlos H. Gomes; Fernandes,Sueli A.; Zaia,José Eduardo; Martinez,Roberto.
Salmonella strains isolated from 1,138 samples representing 28,199 biological materials (stool, urine, blood and other fluids), collected between January 1985 and January 1999 at a reference University Hospital in Ribeirão Preto, São Paulo, Brazil, were studied. The most frequently detected serotypes were Salmonella enterica subspecies enterica serotype4,5,12:i:- (S. I 4,5,12:i:) (21.2%), S. agona (15.8%) and S. enteritidis (11.3%). A changing pattern of Salmonella serotypes was observed between 1985-1999. S. agona, which represented 27% of Salmonella serotypes isolated from 1985-1989, declined to 4% during the period from 1995 to 1999. S. enteritidis isolation remained below 1% until 1989; rose to 5.9% between 1990 and 1994, and increased to 32.3% between...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salmonella; Salmonellosis; Serotypes; Epidemiology and gastroenteritis.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702002000500005
Imagem não selecionada

Imprime registro no formato completo
Prevalence and characteristics of Shiga toxin-producing Escherichia coli (STEC) strains in ground beef in São Paulo, Brazil BJM
Bergamini,Alzira Maria Morato; Simões,Marise; Irino,Kinue; Gomes,Tânia Aparecida Tardelli; Guth,Beatriz Ernestina Cabilio.
This study aims to assess the prevalence of Shiga toxin-producing Escherichia coli (STEC) in ground beef collected in two cities located in the State of São Paulo, Brazil. A total of 250 samples of raw ground beef were collected in local grocery stores during the period of March to December 2002 in the cities of Ribeirão Preto (114 samples) and Campinas (136 samples), São Paulo State, Brazil. The samples were processed according to standard methods. The resulting 591 E.coli colonies were screened for STEC by hybridization assays using the specific DNA probes, stx1,stx2 and eae. Further characterization of STEC isolates included the search for the ehxA sequence, detection of enterohemolysin and expression of Shiga toxin using the Vero cell assay. STEC...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Escherichia coli; Shiga toxin; STEC; Serotypes; Ground beef.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300032
Imagem não selecionada

Imprime registro no formato completo
Resistance profile to antimicrobials of Salmonella spp. isolated from human infections BABT
Delicato,Elaine Regina; Mikcha,Jane Martha Graton; Fernandes,Sueli Aparecida; Pelayo,Jacinta Sanchez.
The purpose of this study was to analyse the profile of antimicrobial resistance among 21 strains of Salmonella isolated from patients with gastroenteritis symptom. It was observed that S. enteritidis was the serotype prevalent. These strains were sensitive to the majority of the antimicrobials tested, however, high resistance was observed in S. typhimurium and S. enterica subsp. enterica serotype 4,5,12:i:-. Surveillance and an efficient monitoring should be priority for the public health for the containment of antimicrobial resistance in foodborne infections.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salmonella; Humans; Serotypes; Resistance; Antimicrobials.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000200005
Imagem não selecionada

Imprime registro no formato completo
Serological and molecular diversity of human rotavirus in São Paulo, Brazil BJM
Munford,Veridiana; Souza,Eloisa Correia; Caruzo,Thabata Alessandra Ramos; Martinez,Marina Baquerizo; Rácz,Maria Lúcia.
From a total of 187 fecal samples from children with ages between 0 and 5 years, collected in the Hospital Universitário -USP, Brazil, from 1994 to 1996, 54 (28.9%) were positive for rotavirus. Positive samples were characterized by electropherotyping, subgrouping, G serotype and genotype and P genotype. Rotavirus electropherotypes were characterized in four different long genome patterns (38.9%), one short genome pattern (34.0%) and 18.0% were characterized as an unusual pattern. Subgroup I was found in 38.9% strains, subgroup II in 50.0% and 7.7% was subgroup nonI-nonII. For G serotypes, G2 was found in 59.3%, G1 was identified in 33.3% of strains, two samples showed mixtures of G1+G2 and one sample was G1+G3. Ten samples characterized as serotype G2...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rotavirus; Gastroenteritis; PCR; Serotypes; Genotypes.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300014
Imagem não selecionada

Imprime registro no formato completo
Serotype changes and antimicrobial nonsusceptibility rates of invasive and non-invasive Streptococcus pneumoniae isolates after implementation of 10-valent pneumococcal nontypeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV) in Bulgaria BJID
Setchanova,Lena; Murdjeva,Marianna; Stancheva,Iglika; Alexandrova,Alexandra; Sredkova,Maria; Stoeva,Temenuga; Yoneva,Magda; Kurchatova,Anna; Mitov,Ivan.
Abstract The 10-valent pneumococcal conjugate vaccine (PCV10) has been included in Bulgarian Childhood Immunization Program since 2010. This study aimed to assess serotype distribution and antimicrobial resistance of 198 invasive and non-invasive Streptococcus pneumoniae strains that had been isolated in Bulgaria during 2011-2016 from patients with invasive (IPD) and non-invasive (NIPD) pneumococcal diseases. The most common invasive serotypes were 3 (10.1%), 19F (4.0%), and 7F (3.0%). A significant decrease in the proportion of invasive vaccine types (VTs) from 64.2% to 35.2% was found in comparison with pre-vaccine era. The most common serotypes among middle ear fluids were 3, 19A and 19F (5.6% each), and VTs fell down from 66.4% to 40.0% in post-PCV10...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Streptococcus pneumoniae; Invasive and non-invasive isolates; Serotypes; Antimicrobial nonsusceptibility.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000400433
Imagem não selecionada

Imprime registro no formato completo
Serotyping HIV-1 with V3 peptides: detection of high avidity antibodies presenting clade-specific reactivity BJMBR
Casseb,J.; Katzenstein,D.; Winters,M.; Brigido,L.F.M.; Duarte,A.J.S.; Hendry,R.M..
The main objective of the present study was to assess the specificity and sensitivity of a modified assay using short synthetic peptides of the V3 region of HIV-1 gp120, which is the main target for neutralizing antibodies. Results from an enzyme immunoassay (EIA) employing a panel of synthetic peptides of HIV-1 subtypes and using urea washes to detect high avidity antibodies (AAV3) were compared with those obtained by the heteroduplex mobility assay and DNA sequencing. The EIA correctly typed 100% of subtype B (sensitivity = 1.0; specificity = 0.95), 100% of HIV-1 E samples (sensitivity = 1.0; specificity = 1.0), and 95% of subtype C specimens (sensitivity = 0.95; specificity = 0.94). In contrast, only 50% of subtype A (sensitivity = 0.5; specificity =...
Tipo: Info:eu-repo/semantics/article Palavras-chave: HIV-1; Viral diversity; Serotypes; V3 serology.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000300013
Imagem não selecionada

Imprime registro no formato completo
Survey of Salmonella spp. in beef meat for export at slaughterhouses in Brazil. Repositório Alice
BIER, D.; KICH, J. D.; DUARTE, S. C.; SILVA, M. R.; VALSONI, L. M.; RAMOS, C. A. N.; RODRIGUES, D. P.; ARAUJO, F. R..
The aim of the present study was to investigate the presence of Salmonella spp. in samples collected from beef meat at three points of the slaughter line (after skinning, washing and cooling) at three slaughterhouses in Brazil that export meat. Detection was based on ISO 6579:2002 and confirmed by PCR and qPCR. The isolates were typified using slide agglutination tests and PFGE. The antibiotic sensitivity profile was determined using the disk diffusion method. Contamination was detected in only one slaughterhouse. The overall frequency of contamination by Salmonella spp. was 6.7% of carcasses (6/90) and 2.6% of carcass surface samples (7/270). All isolates were confirmed by PCR and qPCR. The serological analysis and the PFGE showed a single profile:...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Carcaça bovina; Abatedouro-frigorífico; Sorotipo; Resistência a antibiótico; Carne bovina; Salmonella spp; Carcaça; Salmonelose; Resfriamento; Bovino; Slaughterhouses; Brazil; Serotypes; Antibiotic resistance; Salmonellosis; Skinning; Cooling; Cattle.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1102218
Imagem não selecionada

Imprime registro no formato completo
Swine infection by Streptococcus suis: a retrospective study Arq. Bras. Med. Vet. Zootec.
Del'Arco,A.E.; Santos,J.L.; Bevilacqua,P.D.; Faria,J.E.; Guimarães,W.V..
The epidemic aspects of swine infections caused by Streptococcus suis were studied, focusing mainly on the occurrence of several serotypes. A total of 323 samples of S. suis were isolated from clinically ill animals, serotyped according to the co-agglutination procedure, and analyzed. The serotyping revealed that S. suis was present in several Brazilian states. The largest number was isolated from the states of Minas Gerais (62.5%), São Paulo (10.8%), and Paraná (9.3%). Serotype 2 was the most frequent (61.0%), followed by the serotypes 1, 3, 4, 7, and 8. The largest number of isolations was obtained from the brain (60.1%), followed by the lungs (10.4%). About 9.4% of the cases were due to septicemia.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pig; Streptococcus suis; Serotypes.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000400016
Registros recuperados: 17
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional