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| Registros recuperados: 22 | |
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| Espinosa,Ivette; Báez,M; Vichi,J; Martínez,Siomara. |
| Pasteurella multocida is an important veterinary pathogen that causes a range of animal diseases, including fowl cholera, hemorrhagic septicemia in cattle and atrophic rhinitis in swine. P. multocida is generally recognized as a secondary invader contributing substantially to respiratory diseases in pigs by aggravation of lung lesions. Five capsule serogroups are routinely identified in P. multocida (A, B, D, E, and F) and each is generally associated with, but not completely restricted, to a specific host. A total of 16 isolates of Pasteurella multocida capsular genotype A and two isolates capsular genotype D were characterized for their susceptibilities to 10 antibiotics and the presence of four genes for virulence factors associated to adherence. The... |
| Tipo: Journal article |
Palavras-chave: P. multocida; Virulence factor; PCR; Antimicrobial susceptibility. |
| Ano: 2012 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2012000300003 |
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| Benevides,VP; Rubio,MS; Alves,LBR; Barbosa,FO; Souza,AIS; Almeida,AM; Casas,MRT; Guastalli,EAL; Soares,NM; Berchieri Jr,A. |
| ABSTRACT Fowl paratyphoid infections are caused by different Salmonella serovars that can affect a wide range of hosts. Due to its complex epidemiology, Salmonella serovar identification is crucial for the development and implementation of monitoring and control programs in poultry farms. Moreover, the characterization of the antimicrobial resistance profiles of Salmonella strains isolated from livestock is relevant to public health because they are a common causative agent of foodborne diseases. The objective of this study was to investigate the presence of Salmonella spp. and to identify the antimicrobial resistance profiles of strains isolated in the midwestern region of São Paulo state, which accounts for the highest production of table eggs in Brazil.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antimicrobial susceptibility; Foodborne disease; Salmonellosis; Multi-drug resistance; Public health. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000200319 |
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| d'Azevedo,Pedro Alves; Dias,Cícero Armídio Gomes; Lemos,Sibele Krebs; Bittencourt,José Augusto Ferreira; Teixeira,Lúcia Martins. |
| Resistance to several classes of antimicrobial agents is a remarkable characteristic of enterococcal strains increasingly reported worldwide. Information about strains isolated in the southern region of Brazil is still limited. In this study, a total of 455 consecutive enterococcal isolates recovered from patients living in Porto Alegre, Brazil, were identified at species level and evaluated for their antimicrobial susceptibilities by agar diffusion testing. The most frequent species was E. faecalis (92.8%), followed by E. faecium (2.9%), E. gallinarum (1.5%), E. avium (1.1%), E. hirae (0.7%), E. casseliflavus (0.4%), E. durans (0.4%), and E. raffinosus (0.2%). According to the results of disk tests 62.0% of the strains were resistant to tetracycline,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enterococcal; Antimicrobial susceptibility; Resistance. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000200005 |
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| Shi,Wei; Liu,Ying; Meng,Qinghong; Yuan,Lin; Gao,Wei; Yao,Kaihu. |
| ABSTRACT This study examined the antimicrobial susceptibility patterns and clonal complex (CC) characteristics of serogroup 6 Streptococcus pneumoniae isolates collected from children in Beijing, China, between 1997 and 2016. Serotypes were determined using the Quellung reaction, and the antimicrobial susceptibility profiles of the isolates were determined using the disc-diffusion method or by E-test. Sequence types (STs) were assigned based on multilocus sequence typing. A total of 250 isolates were examined, with 55.2%, 30.0%, 12.8%, and 2.0% of isolates identified as serotypes 6A, 6B, 6C, and 6D, respectively. All of the isolates were susceptible to levofloxacin and vancomycin, and the non-suceptibitility rate to penicillin was 41.6%. Eighty-two... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Streptococcus pneumoniae; Children; Antimicrobial susceptibility; Clonal complex (CC); Sequence type (ST). |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000400891 |
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| Penha Filho,Rafael Antonio Casarin; Ferreira,Joseane Cristina; Kanashiro,Ana Maria Iba; Darini,Ana Lúcia da Costa; Berchieri Junior,Angelo. |
| ABSTRACT: Salmonella Gallinarum (S. Gallinarum) and Salmonella Pullorum (S. Pullorum) are poultry host-specific, agents of fowl typhoid and pullorum disease, respectively. These biovars cause septicemic infections, resulting in high mortality. Outbreaks are frequently reported worldwide, causing losses due to the elimination of infected flocks and treatments. The use of antimicrobial agents is frequent in poultry farms to prevent or treat gastrointestinal infections. In the present research it was evaluated the antimicrobial susceptibility of 50 S. Gallinarum and S. Pullorum isolates, from outbreaks that occurred between 1987 to 1991 and 2006 to 2013. The comparison of the susceptibility profiles showed that all isolates were susceptible to β-lactams. All... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Quinolones; Chicken; Fowl typhoid; Antimicrobial susceptibility; Salmonella.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000300513 |
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| Cheng,Fangjun; Li,Zhangcheng; Lan,Shimei; Liu,Wei; Li,Xiaoyan; Zhou,Zuoyong; Song,Zhenhui; Wu,Juan; Zhang,Manli; Shan,Wenjie. |
| Abstract Klebsiella pneumoniae is important human and animal pathogen that causes a wide spectrum of infections. In this study, isolates from cattle nasal swabs samples were identified by 16S rRNA, and to evaluate the antimicrobial susceptibility, virulence gene carrying levels, and multilocus sequence typing of K. pneumoniae isolates. 33 isolates of K. pneumoniae were isolated and identified in 213 nasal swabs samples, of which 12 were hypervirulent K. pneumoniae strains. Extended Spectrum Beta-Lactamases genes were found in 93.4% of the strains. Of which, TEM was the most prevalent (93.4%), followed by CTX-M and SHV were 57.6% and 39.4%, respectively. A main mutation pattern of quinoloneresistance-determining region, Thr83-Ieu and Asp87-Asn in gyrA and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cattle; Antimicrobial susceptibility; Klebsiella pneumonia; MLST; Virulence genes. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500093 |
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| Suliman Al-Badah,Abdulhakim; S.S. Ibrahim,Abdelnasser; Al-Salamah,Ali A; Ibrahim,Shebl Salah S. |
| Background Enterococcus faecalis is considered to be one of most prevalent species in the oral cavity, particularly in endodontic infections. The aim of the present study was to investigate the prevalence of E. faecalis in dental root canals, clonal diversity by restriction fragment length polymorphism (RFLP) and randomly amplified polymorphic DNA (RAPD-PCR) analysis, and the antibiotic susceptibility of E. faecalis isolates. Results Among the bacterial strains isolated from dental root canal specimens (n = 82), E. faecalis was determined to have the highest prevalence followed by Streptococcus viridians, Leuconostoc mesenteroides, Staphylococcus aureus, Streptococcus mitis, and Pediococcus pentosaceus. Cluster analysis of RAPD-PCR and RFLP patterns of the... |
| Tipo: Journal article |
Palavras-chave: Antimicrobial susceptibility; Endodontic infection; Enterococcus faecalis; Genotype; RAPD; RFLP. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000300006 |
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| Ferreira,Débora Paula; Silva,Vânia Lúcia; Guimarães,Danielle Aparecida; Coelho,Cíntia Marques; Zauli,Danielle Alves Gomes; Farias,Luiz Macêdo; Carvalho,Maria Auxiliadora Roque; Diniz,Claudio Galuppo. |
| Despite the importance of gastrointestinal diseases and their global distribution, affecting millions of individuals around the world, the role and antimicrobial susceptibility patterns of anaerobic bacteria such as those in the Bacteroides fragilis group (BFG) are still unclear in young children. This study investigated the occurrence and distribution of species in the BFG and enterotoxigenic strains in the fecal microbiota of children and their antimicrobial susceptibility patterns. Diarrheic (n=110) and non-diarrheic (n=65) fecal samples from children aged 0-5 years old were evaluated. BFG strains were isolated and identified by conventional biochemical, physiological and molecular approaches. Alternatively, bacteria and enterotoxigenic strains were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteroides fragilis group; ETBF; Antimicrobial susceptibility; Diarrhea. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300010 |
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| Teixeira,M.M.; Araújo,M.C.; Silva-Carvalho,M.C.; Beltrame,C.O.; Oliveira,C.C.H.B.; Figueiredo,A.M.S.; Oliveira,A.G.. |
| In this study, genotyping techniques including staphylococcal chromosomal cassette mec (SCCmec) typing, pulsed-field gel electrophoresis (PFGE), multilocus sequence typing (MLST) and restriction-modification tests were used to compare the molecular characteristics of methicillin-resistant Staphylococcus aureus (MRSA) isolates recovered at two times within a 10-year interval (1998 and 2008) from a tertiary Brazilian hospital. In addition, the antimicrobial susceptibility profiles were analyzed. All 48 MRSA isolates from 1998 and 85.7% from 2008 (48/56 isolates) displayed multidrug-resistance phenotypes and SCCmec III. All but one of the 13 representative SCCmec III isolates belonged to CC8 and had PFGE patterns similar to that of the BMB9393 strain... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: MRSA; Antimicrobial susceptibility; CC5; Cordobes clone; Trimethoprim-sulfamethoxazole. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000700011 |
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| Pourakbari,Babak; Mamishi,Setareh; Mashoori,Negar; Mahboobi,Nastaran; Ashtiani,Mohammad H; Afsharpaiman,Shahla; Abedini,Masomeh. |
| Appropriate antimicrobial treatment of shigellosis depends on identifying its changing resistance pattern over time. We evaluated 15,255 stool culture submitted from July 2001 to June 2006 to the Laboratory of Children Medical Center Hospital. Specimen culture, bacterial identification, and disk diffusion susceptibility testing were performed according to National Committee for Clinical Laboratory Standards guidelines. From 15,255 stool samples, 682 (4.5%) were positive for Shigella species. The most common species of Shigella were S. flexneri (48%) and S. sonnei (45%); other results were S. dysenteriae (5%) and S. boydii (2%). The rate of Sensitivity to ceftriaxone (95%), ceftizoxime (94%), and nalidixic acid (84%) were among our isolates. Resistance to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Shigella; Antimicrobial susceptibility; Dysentery. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000200007 |
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| Gales,Ana C.; Jones,Ronald N.; Andrade,Soraya S.; Pereira,Andrea S.; Sader,Hélio S.. |
| The in vitro activity of tigecycline (former GAR-936), a new semisynthetic tetracycline, was evaluated in comparison with tetracycline and other antimicrobial agents. MATERIAL AND METHODS: A total of 1,326 contemporary clinical isolates collected from the Latin American region were collected in 2000-2002 period and tested with microdilution broth according to the CLSI guidelines. The bacterial pathogens evaluated included Staphylococcus aureus (505), Streptococcus pneumoniae (269), coagulase-negative staphylococci (CoNS; 227), Haemophilus influenzae (129), Enterococcus spp. (80), Moraxella catarrhalis (54), beta-haemolytic streptococci (28), viridans group streptococci (26), and Neisseria meningitidis (8) RESULTS:Tigecycline demonstrated excellent activity... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antimicrobial susceptibility; Tigecycline; Latin America and SENTRY. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000500001 |
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| Pourakbari,Babak; Ferdosian,Farzad; Mahmoudi,Shima; Teymuri,Mostafa; Sabouni,Farah; Heydari,Hossein; Ashtiani,Mohammad Taghi Haghi; Mamishi,Setareh. |
| Emerging antimicrobial resistance rates and Extended-spectrum beta-lactamase producing Escherichia coli recovered from urinary tract infections (UTI) is an increasing problem in specific regions, limiting therapeutic options. One hundred E. coli isolates causing UTI in patients with age from 2 months to 12 years admitted at CMC in the period of April 2009 to March 2010 were tested for antibiotic susceptibility using the disk diffusion method. Surprisingly high resistance rates were recorded for E. coli against TMP/SMX (84%), cefalotin (66%), cefuroxime (50%), cefixime (50%) and ceftriaxone (45%). Antimicrobial susceptibility of E. coli isolates was followed by meropenem (98%), amikacin (95%), nitrofurantoin (91%) and gentamicin (68%). Extended spectrum... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: E. coli; Urinary Tract Infection; Antimicrobial susceptibility; ESBL. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200041 |
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| Santo,Edilene; Salvador,Miriam Mendonça; Marin,José Moacir. |
| Multiple resistances to antimicrobial drugs arising in Escherichia coli isolates may complicate therapeutic management of urinary tract infection (UTI) by this organism. In order to assess the multidrug resistance (MDR) among urinary E. coli isolates, we have tested 11 antimicrobial drugs against 67 isolates from outpatients attended in a tertiary-care teaching hospital and of 78 isolates from a municipal health unit, respectively in Ribeirão Preto, State of São Paulo, Brazil. Seventy-six percent and 22% of the isolates from the tertiary-care hospital and the municipal unit, respectively, were resistant to three or more different classes of agents, and were considered to present MDR. Among the isolates from the hospital patients, 73.0%, 65.0%, 58.0%, 58.0%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Urinary tract infections; Escherichia coli; Antimicrobial susceptibility; Multidrug-resistance. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000600010 |
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| Chang,M.R.; Carvalho,N.C.P.; Oliveira,A.L.L.; Moncada,P.M.F.; Moraes,B.A.; Asensi,M.D.. |
| Nosocomial infections (NI) result in considerably high mortality and morbidity rates, especially among pediatric patients. Considering current worldwide changes, information about the occurrence of pathogens and susceptibility tests are now seen as decisive for optimizing treatment. The purpose of this research was to determine the frequency of microorganisms, antimicrobial and genetic profiles, and risk factors associated with nosocomial infections in a teaching hospital in Campo Grande, Mato Grosso do Sul. From January 1998 to December 1999, 108 patients were characterized as having nosocomial infection, from which 137 pathogens were isolated. Identification and antimicrobial susceptibility was determined by conventional and automated techniques.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Infant; Nosocomial infection; Antimicrobial susceptibility. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702003000200009 |
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| Registros recuperados: 22 | |
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