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Registros recuperados: 17
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An outbreak of staphylococcal food poisoning in the Municipality of Passos, MG, Brazil BABT
Carmo,Luiz Simeão do; Dias,Ricardo Souza; Linardi,Valter Roberto; Sena,Maria José de; Santos,Deise Aparecida dos.
An outbreak of staphylococcal food poisoning involving 42 people who had eaten a meal at a restaurant in the Municipality of Passos, Minas Gerais, Brazil, is reported. Thirty-one of the individuals became ill with vomiting, diarrhea and dizziness within 30 minutes after eating the meal. The foods suspected were: chicken pancake, rice, beans, tomato sauce and mashed chick-peas. Large numbers (> 2.0x10(8) CFU/g) of enterotoxigenic staphylococci were present in the chicken pancake. These strains produced enterotoxins A, B and D. Swabs from the nasal cavity and throat and from under the fingernails of food handlers were cultured for the detection of enterotoxigenic staphylococci carriers. Four out of five of them were healthy carriers of enterotoxin A, B, C...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Staphylococcal enterotoxin; Food poisoning; Staphylococci; Food handlers.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000400012
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Biofilms: microbes and disease BJID
Aparna,Madhu Sharma; Yadav,Sarita.
Bacteria that attach to surface aggregate in a hydrated polymeric matrix of their own synthesis to form biofilms. These represent microbial societies with their own defense and communication system. Transitioning from acute to chronic infection is frequently associated with biofilm formation.Bacteria in biofilms are innately more resistant to antimicrobial agents. The presence of indwelling medical devices increases the risk for biofilm formation and subsequent infection. The current antibiotic therapies are of limited effectiveness in resolving biofilms infection.This review attempts to discuss the stages in biofilm formation, their pathogenic mechanisms, effect of antimicrobial agents, detection and eradication of the biofilms.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biofilms; Staphylococci; Pseudomonas; Candida.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000600016
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Characterization of mannitol-fermenting methicillin-resistant staphylococci isolated from pigs in Nigeria BJM
Ugwu,Clifford C.; Gomez-Sanz,Elena; Agbo,Ifeoma C.; Torres,Carmen; Chah,Kennedy F..
This study was conducted to determine the species distribution, antimicrobial resistance pheno- and genotypes and virulence traits of mannitol-positive methicillin-resistant staphylococci (MRS) isolated from pigs in Nsukka agricultural zone, Nigeria. Twenty mannitol-positive methicillin-resistant coagulase-negative staphylococcal (MRCoNS) strains harboring the mecA gene were detected among the 64 Staphylococcus isolates from 291 pigs. A total of 4 species were identified among the MRCoNS isolates, namely, Staphylococcus sciuri (10 strains), Staphylococcus lentus (6 strains), Staphylococcus cohnii (3 strains) and Staphylococcus haemolyticus (one strain). All MRCoNS isolates were multidrug-resistant. In addition to β-lactams, the strains were resistant to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Methicillin-resistant; Mannitol-fermenting; Staphylococci; Quinolone resistance; Pigs.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300885
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Etiology of canine otitis media and antimicrobial susceptibility of coagulase-positive Staphylococci in Fortaleza city, Brazil BJM
Oliveira,Lis Christina de; Leite,Carlos Artur Lopes; Brilhante,Raimunda Sâmia N.; Carvalho,Cibele Barreto M..
This study evaluated the middle ear microbiota and antimicrobial susceptibility patterns from strains isolated from dogs with otitis media. A total of 62 dogs obtained from Zoonoses Control Center of Fortaleza City Ceará State / Brazil were studied over a 10-month period (August/2003 to June/2004). Of the total, 46.8% (n=30) of the animals were positive for otitis media and the infection was monomicrobial in 76.6% of them. The most frequent isolated agents were coagulase-positive Staphylococci (CPS-55%) and Pseudomonas sp (10%). For S. intermedius (n=13) and S. aureus subsp aureus (n=9), respectively, the greater resistance rates were observed using penicillin G (30.76% and 44.44%), ampicillin (7.69% and 44.44%), erythromycin (23.07% and 44.44%),...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Otitis media; Dogs; Staphylococci; Antimicrobials.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000200009
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Farnesol in combination with N-acetylcysteine against Staphylococcus epidermidis planktonic and biofilm cells BJM
Gomes,Fernanda; Leite,Bruna; Teixeira,Pilar; Azeredo,Joana; Oliveira,Rosário.
Staphylococcus epidermidis is the most frequent cause of nosocomial sepsis and catheter-related infections, in which biofilm formation is considered to be the main virulence mechanism. In biofilm environment, microbes exhibit enhanced resistance to antimicrobial agents. This fact boosted the search of possible alternatives to antibiotics. Farnesol and N-acetylcysteine (NAC) are non-antibiotic drugs that have demonstrated antibacterial properties. In this study, the effect of farnesol and NAC isolated or in combination (farnesol+NAC) was evaluated. NAC at 10 × MIC caused a total cell death in planktonic cells. On the other hand, S. epidermidis biofilms exhibited 4 log reduction in viable cell number after a 24h treatment with NAC at the former...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nosocomial infection; Biofilm; Staphylococci; Farnesol; N- acetylcysteine.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000100026
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Genetic diversity and antimicrobial resistance in Staphylococcus aureus and coagulase?negative Staphylococcus isolates from bovine mastitis in Minas Gerais, Brazil. Repositório Alice
DORNELES, E. M. S.; FONSECA, M. D. A. M.; ABREU, J. A. P.; LAGE, A. P.; BRITO, M. A. V. P.; PEREIRA, C. R.; BRANDAO, H. de M.; GUIMARÃES, A. S.; HEINEMANN, M. B..
Abstract The aims of this study were to determine the antimicrobial susceptibility profile and genetic diversity of Staphylococcus spp. isolated from dairy cows in Minas Gerais, Brazil, and to assess the relationship among the isolates? susceptibility profiles and pulsed‐field gel electrophoresis (PFGE) genotypes. Seventy‐nine isolates were used, including S. aureus (n = 71) and coagulase‐negative staphylococci (CoNS) (n = 8). Susceptibility to 12 antimicrobial agents was performed. All Staphylococcus spp. were subjected to PFGE. Staphylococcus aureus and CoNS isolates exhibited full susceptibility only to cephalothin. The greatest percentages of resistance among Staphylococcus spp. were observed to penicillins, folate pathway...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Antimicrobial resistance; Coagulase-negative staphylococci; Methicillin-resistant S aureus; PFGE; Staphylococci.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1118368
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Heterogeneous resistance to vancomycin and teicoplanin among Staphylococcus spp. isolated from bacteremia BJID
Nunes,Ana Paula Ferreira; Schuenck,Ricardo Pinto; Bastos,Carla Callegário Reis; Magnanini,Mônica Maria F.; Long,Jacinta B.; Iorio,Natália Lopes Pontes; Santos,Kátia Regina Netto dos.
This study evaluated the BHIA screening method with 4 or 6 mug/mL of vancomycin to detect glycopeptides heteroresistant staphylococci strains isolated from bacteremia. A total of 213 staphylococci strains were isolated from 106 patients between October/2001 and November/2002 in a tertiary hospital in Rio de Janeiro city. Fifty-seven (53.8%) patients presented Staphylococcus aureus, while coagulase-negative staphylococci (CNS) were isolated from 49 (46.2%). Resistance rates for oxacillin of 26.3% and 81.6% were found for the staphylococci isolates, respectively. Thirteen CNS isolated from nine (8.5%) patients grew on agar screening with 4 mug/mL of vancomycin and showed heterogeneous profiles of resistance for vancomycin and teicoplanin by the population...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Staphylococci; Vancomycin and teicoplanin heteroresistance; Population analysis profile; Vancomycin agar screen.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000300009
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Identification and antimicrobial susceptibility patterns of Staphylococcus spp. isolated from canine chronic otitis externa Arq. Bras. Med. Vet. Zootec.
Silva,N..
Swab samples obtained from 96 dogs with chronic otitis externa were cultured for the isolation of Staphylococcus species. Of 57 staphylococcal strains, 41 (72%) were coagulase-negative (CNS). The identification of staphylococci strains was made by standard procedures for the routine identification of staphylococci in clinical practice. S. sciuri was the most frequent species isolated (22.8%) from chronic otitis externa in dogs followed by S. intermedius (12.3%), S. auricularis (10.5%) and S. aureus (8.8%). Three (5.2%) CNS strains could not be identified. Bacterial isolates were susceptible to enrofloxacin, gentamicin, cephalothin, chloramphenicol and neomycin. Resistance was most common to penicillin G, oxacillin and ampicillin.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Otitis externa; Staphylococci; Antimicrobial.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352001000200001
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In vitro antimicrobial susceptibility of staphylococci isolated from canine pyoderma in Rio de Janeiro, Brazil BJM
Penna,B.; Varges,R.; Medeiros,L.; Martins,G.M.; Martins,R.R.; Lilenbaum,W.
The study aimed to determine the etiology and antimicrobial resistance of staphylococci isolated from canine pyoderma. Samples were obtained from dogs with pyoderma and isolates were identified by biochemical reactions and tested for susceptibility to 15 antimicrobials. Thirty nine staphylococci isolates were obtained, and S. pseudintermedius was the most frequent (47.4%). All isolates showed resistance to at least one drug and 77.1% were multiresistant. The most effective drug was oxacillin. The study reports the alarming antimicrobial resistance of Staphylococcus isolated from canine pyoderma samples.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Staphylococci; Resistance; Antimicrobial agents; Dog; Pyoderma.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300011
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Microbiological analysis and sensitivity profile of Staphylococcus spp. in subclinical mastitis of dairy goats Arq. Bras. Med. Vet. Zootec.
Salaberry,S.R.S.; Saidenberg,A.B.S.; Zuniga,E.; Gonsales,F.F.; Melville,P.A.; Benites,N.R..
Subclinical mastitis in goats causes economic losses and risks to public health. Given the need for research that shows the most isolated staphylococci species and sensibility tests comparing the resistance between coagulase-negative (CNS) and positive Staphylococcus (CPS) goats with subclinical mastitis, the aim of this study was to identify the microorganisms isolated from milk samples of goats with subclinical mastitis, as well as define the staphylococci species and determine the sensitivity profile of Staphylococcus spp. to antimicrobials. To collect samples, tests were performed for mug of black background and California mastitis test (CMT), collecting milk from CMT positive animals. A total of 226 samples from seven herds of dairy goats was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antimicrobial; Milk; Sensibility test; Staphylococci.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000200336
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Novel pharmaceutical molecules against emerging resistant gram-positive cocci BJID
Manfredi,Roberto; Sabbatani,Sergio.
INTRODUCTION: methicillin- and also vancomycin (glycopeptide)-resistant Gram-positive organisms have emerged as an increasingly problematic cause of hospital-acquired infections, also spreading into the community. Vancomycin (glycopeptide) resistance has emerged primarily among Enterococci, but the MIC values of vancomycin for the entire Staphylococcus species are also increasing worldwide. MATERIAL AND METHODS: the aim of our review is to evaluate the efficacy and tolerability of newer antibiotics with activity against methicillin-resistant and glycopeptide-resistant Gram-positive cocci, on the ground of our experience at a tertiary care metropolitan Hospital, and the most recent literature evidences in this field. RESULTS: Quinupristin-dalfopristin,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Resistant gram-positive cocci; Staphylococci; Enterococci; Pneumococci; Streptococci; Epidemiology; Clinical issues; Novel antimicrobial compounds; Characteristics; Literature evidences.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000100020
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Ocorrência de mastite subclínica ovina durante duas lactações consecutivas em rebanho da raça Santa Inês. Repositório Alice
ZAFALON, L. F.; VESCHI, J. L. A.; MARTINS, K. B.; SANTANA, R. C. M..
O objetivo desse estudo foi avaliar a ocorrência da mastite subclínica ovina em duas lactações e a evolução da doença em duas lactações consecutivas. As amostras de leite foram originadas de um rebanho com 160 ovelhas da raça Santa Inês. Na primeira lactação, colheram-se amostras em ovelhas aos 14 dias pós-parto e no período próximo ao desmame. Na segunda lactação, as amostras de leite foram colhidas dos mesmos animais aos 14 dias pós-parto, 52 dias pós-parto e ao desmame. A triagem dos casos de mastite subclínica foi feita preliminarmente por meio do California Mastitis Test (CMT). As amostras de leite para a investigação microbiológica foram obtidas de metades mamárias positivas e negativas ao CMT. Os estafilococos coagulase-negativos foram os...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Raça Santa Inês; Produção animal; Estafilococos; Doença; Mastite ovina; Leite; Ovine mastitis; Staphylococci.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1012097
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Ocorrência de mastite subclínica ovina durante duas lactações consecutivas em rebanho da raça Santa Inês. Repositório Alice
ZAFALON, L. F.; VESCHI, J. L. A.; MARTINS, K. B.; SANTANA, R. C. M..
O objetivo desse estudo foi avaliar a ocorrência da mastite subclínica ovina em duas lactações e a evolução da doença em duas lactações consecutivas. As amostras de leite foram originadas de um rebanho com 160 ovelhas da raça Santa Inês. Na primeira lactação, colheram-se amostras em ovelhas aos 14 dias pós-parto e no período próximo ao desmame. Na segunda lactação, as amostras de leite foram colhidas dos mesmos animais aos 14 dias pós-parto, 52 dias pós-parto e ao desmame. A triagem dos casos de mastite subclínica foi feita preliminarmente por meio do California Mastitis Test (CMT). As amostras de leite para a investigação microbiológica foram obtidas de metades mamárias positivas e negativas ao CMT. Os estafilococos coagulase-negativos foram os...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Raça Santa Inês; Produção animal; Estafilococos; Doença; Mastite ovina; Leite; Ovine mastitis; Staphylococci.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1015017
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Outbreaks associated to bloodstream infections with Staphylococcus aureus and coagulase-negative Staphylococcus spp in premature neonates in a university hospital from Brazil BJM
Brito,Denise Von Dolinger de; Oliveira,Elias Jose; Darini,Ana Lúcia da Costa; Abdallah,Vânia Olivetti Steffen; Gontijo Filho,Paulo P..
Staphylococcus aureus and coagulase-negative staphylococci (CoNS) are among the most important nosocomial pathogens in patients from neonatal intensive care units, mainly in bloodstream infections. The main objective of this study is to determine the occurrence of nosocomial infections by these microorganisms using two surveillance systems (Laboratorial Surveillance and National Nosocomial Infection Surveillance System) and to determine the most important risk factors during a two-year period (2001-2002). Two outbreaks by both methicillin susceptible S. aureus (MSSA) (1.5%) and methicillin resistant CoNS (MRCoNS) (1.0%) were observed, from January to February/02 and August to September/02. Endemic incidence rates of 3.77% and 5.16% of S. aureus and CoNS,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Polymicrobial; Polyclonal; Outbreaks; Neonates; Staphylococci.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000200001
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Profiles of resistance of Staphylococci isolated from cases of subclinical mastitis in sheep in different stages of lactation and between two lactations. Repositório Alice
ZAFALON, L. F.; MARTINS, K. B.; CHAPAVAL, L..
bitstream/item/74353/1/PROCI-2012.00283.pdf
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Staphylococci; Mastitis; Sheep.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/945417
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sensitivity to antimicrobial agents in different species of coagulase-negative staphylococci isolated in sheep's milk. Repositório Alice
VASO, C. O.; FIM JUNIOR, G. A.; LOPES, N. S. S.; PILON, L. E.; ZAFALON, L. F..
2015
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Staphylococci; Ovine; Sensitivity; Antimicrobial agent.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1030041
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TOXIC SHOCK SYNDROME J. Venom. Anim. Toxins
BERGDOLL,M. S..
Toxic shock syndrome is a staphylococcal disease caused by toxins produced by the staphylococci, toxic shock syndrome toxin-1 and enterotoxin B. The disease results from staphylococci growing in the vagina with the use of tampons during menstruation, primarily in young women. However, any staphylococcal infection can result in toxic shock syndrome if the staphylococci produce the appropriate toxins and the individual has no antibodies to the toxins. The symptoms can be quite severe, with high fever, low blood pressure, diffuse macular erythroderma, orthostatic dizziness, vomiting and or diarrhea at the onset, severe myalgia, peeling of the skin of the palms of the hands and the soles of the feet after seven to ten days, and death in some cases. The disease...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Toxic shock syndrome; Toxic shock syndrome toxin; Staphylococci; Enterotoxins; Antibodies.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301997000100002
Registros recuperados: 17
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