Consulta: subjectFacets:"Virulence genes"
Registros recuperados: 21
Data/hora: 06/06/2024 06:09:09

Distribution of PLD and FagA, B, C and D genes in Corynebacterium pseudotuberculosis isolates from sheep and goats with caseus lymphadenitis
Provedor de dados: 74
Autores: Sá,Maria da Conceição Aquino de; Gouveia,Gisele Veneroni; Krewer,Carina da Costa; Veschi,Josir Laine Aparecida; Mattos-Guaraldi,Ana Luiza de; Costa,Mateus Matiuzzi da.
Caseous lymphadenits (CL) is a chronic and subclinical disease that affects goats and sheep and, consequently, causes economic losses, especially to small producers. The purpose of this study, through use of Polymerase Chain Reaction (PCR), was to verify the presence of virulence genes of phospholipase D (PLD), integral membrane protein (FagA), iron enterobactin transporter (FagB), ATP binding cytoplasmic membrane protein (FagC) and iron siderophore binding protein (FagD) in 168 isolates of C. pseudotuberculosis obtained from cases of caseous lymphadenitis in goats and sheep. FagA, FagB and PLD genes were detected in all 145 strains isolated from abscesses in superficial lymph nodes and in 23 strains isolated from viscera. The FagC gene was positive in 167...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Virulence genes; C. pseudotuberculosis; Caseous lymphadenits.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000200017

Assessment of FTA card employment for Pasteurella multocida DNA transport and detection of virulence-associated genes in strains isolated from fowl cholera in the United States
Provedor de dados: 45
Autores: Almeida,C.N.; Furian,T.Q.; Borges,K.A.; Perdoncini,G.; Mauel,M.J.; Rocha,S.L.S.; Nascimento,V.P.; Salle,C.T.P.; Moraes,H.L.S.
ABSTRACT Fowl Cholera (FC) is a disease caused by Pasteurella multocida. The severity of this disease is partly caused by virulence factors. Genes encoding fimbriae, capsule, sialidases and proteins for iron metabolism may be related to P. multocida’s ability to infect the host. Besides to examining DNA for the presence of virulence genes, DNA is essential for the diagnostic and FTA cards are an alternative for genetic material transport. The study aims to evaluate the viability of P. multocida DNA transport using the cards and to detect 14 virulence genes in 27 strains isolated from FC cases in the United States by multiplex-PCR. No growth was observed in any of the FTA cards, which was essential to assess the security. Furthermore, DNA detection was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fowl cholera; FTA cards; Virulence genes.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000601855

Characterization of Escherichia coli virulence genes, pathotypes and antibiotic resistance properties in diarrheic calves in Iran
Provedor de dados: 48
Autores: Shahrani,Masoud; Dehkordi,Farhad Safarpoor; Momtaz,Hassan.
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Tipo: Journal article
Palavras-chave: Antibiotic resistance profile; Diarrheic calves; Escherichia coli; Iran; Serogroups; Virulence genes.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100028

Antimicrobial susceptibility, virulence determinant carriage and molecular characteristics of Staphylococcus aureus isolates associated with skin and soft tissue infections
Provedor de dados: 55
Autores: Yu,Fangyou; Liu,Yunling; Lv,Jinnan; Qi,Xiuqin; Lu,Chaohui; Ding,Yu; Li,Dan; Liu,Huanle; Wang,Liangxing.
ABSTRACT A better understanding of the antimicrobial susceptibility, carriage of virulence determinants and molecular characteristics of Staphylococcus aureus isolates associated with skin and soft tissue infections (SSTIs) may provide further insights related to clinical outcomes with these infections. From January 2012 to September 2013, a total of 128 non-duplicateS. aureus isolates were recovered from patients with SSTIs. All 128 S. aureus SSTI isolates carried at least five virulence genes tested. Virulence genes detected among at least 70% of all tested isolates included hld (100%), hla (95.3%),icaA (96.9%), clf (99.2%),sdrC (79.7%), sdrD (70.3%), andsdrE (72.7%). The prevalence of MRSA isolates with 10 virulence genes tested (54.4%, 31/56) was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Staphylococcus aureus; Skin and soft tissue infections; Molecular characteristic; Virulence genes.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000600614

Incidence of virulence determinants in clinical Enterococcus faecalis and Enterococcus faecium isolates collected in Bulgaria
Provedor de dados: 55
Autores: Strateva,Tanya; Atanasova,Daniela; Savov,Encho; Petrova,Guergana; Mitov,Ivan.
Abstract  Objectives To evaluate the prevalence of some virulence genes among 510 clinical Enterococcus spp. isolates and to assess the association of those genes with the species, infection site, and patient group (inpatients/outpatients).  Methods Adhesins genes (aggregation substances agg and asa1 of Enterococcus faecalis and Enterococcus faecium, respectively), enterococcal surface protein (esp), endocarditis-specific antigen A (efaA), collagen-binding proteins (ace/acm)); invasins (hyaluronidase (hyl) and gelatinase (gelE)); cytotoxines (activation of cytolysin (cylA) in E. faecalis); and modulators of the host immunity and inflammation (enhanced expression pheromone (eep) in E. faecalis) were detected by polymerase chain reaction.  Results The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enterococcus faecalis; Enterococcus faecium; Virulence genes; Prevalence.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000200127

Comparative analysis of agr groups and virulence genes among subclinical and clinical mastitis Staphylococcus aureus isolates from sheep flocks of the Northeast of Brazil
Provedor de dados: 58
Autores: Almeida,Lara M. de; Almeida,Mayra Zilta P.R.B. de; Mendonça,Carla L. de; Mamizuka,Elsa M.
Staphylococcus aureus is one of the most frequent mastitis causative agents in small ruminants. The expression of most virulence genes of S. aureus is controlled by an accessory gene regulator (agr)locus. This study aimed to ascertain the prevalence of the different agr groups and to evaluate the occurrence of encoding genes for cytotoxin, adhesins and toxins with superantigen activity in S. aureus isolates from milk of ewes with clinical and subclinical mastitis in sheep flocks raised for meat production The agr groups I and II were identified in both cases of clinical and subclinical mastitis. Neither the arg groups III and IV nor negative agr were found. The presence of cflA gene was identified in 100% of the isolates. The frequency of hla and lukE-D...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Staphylococcus aureus; Agr groups; Virulence genes; Mastitis; Sheep flock.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200026

Distribution of virulence genes sefC, pefA and spvC in Salmonella Enteritidis phage type 4 strains isolated in Brazil
Provedor de dados: 58
Autores: Castilla,Karina Salvagni; Ferreira,Claudete Serrano Astolfi; Moreno,Andrea Micke; Nunes,Iolanda Aparecida; Ferreira,Antônio José Piantino.
The distribution of virulence genes, sefC, pefA and spvC, was investigated in 110 Salmonella Enteritidis phage type 4 strains by polymerase chain reaction. Their influence in the caecal colonization and invasion of liver and spleen of one-day-old chickens was studied. Eight isolates were negative for the spvC gene, three for the pefA gene and one, for the sefC gene. These results allowed grouping the strains into four genotypes. Presence of these genes did not influence bacteria invasion in the liver and spleen of the chickens ten days after infection, although the presence of more than one fimbrial gene can be related to caecal colonization.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonella; Virulence genes; Colonization; Invasion.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000200007

Molecular epidemiology of Streptococcus agalactiae isolated from mastitis in Brazilian dairy herds
Provedor de dados: 58
Autores: Carvalho-Castro,Glei A.; Silva,Juliana R.; Paiva,Luciano V.; Custódio,Dircéia A.C.; Moreira,Rafael O.; Mian,Glaucia F.; Prado,Ingrid A.; Chalfun-Junior,Antônio; Costa,Geraldo M.
Abstract Streptococcus agalactiae is one of the most common pathogens leading to mastitis in dairy herds worldwide; consequently, the pathogen causes major economic losses for affected farmers. In this study, multilocus sequence typing (MLST), genotypic capsular typing by multiplex polymerase chain reaction (PCR), and virulence gene detection were performed to address the molecular epidemiology of 59 bovine (mastitis) S. agalactiae isolates from 36 dairy farms located in the largest milk-producing mesoregions in Brazil (Minas Gerais, São Paulo, Paraná, and Pernambuco). We screened for the virulence genes bac, bca, bibA, cfb, hylB, fbsA, fbsB, PI-1, PI-2a, and PI-2b, which are associated with adhesion, invasion, tissue damage, and/or immune evasion....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Group B Streptococcus; Multilocus sequence typing; Genotypic capsular typing; Virulence genes; Bovine disease.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000300551

Homology among extra-cryptic DNA bands and the typical plasmids in Brazilian Yersinia pestis strains
Provedor de dados: 58
Autores: Leal,Nilma Cintra; Sobreira,Marise; Leal,Tereza Cristina Arcanjo; Almeida,Alzira Maria Paiva de.
Yersinia pestis, the etiologic agent of plague, harbors three well-characterized plasmids: pFra (90-110kb), pYV (70 kb) and pPst (9.5 kb). Furthermore, some extra-cryptic DNA bands have been observed in a number of wild strains from several foci of the world. Additional bands have also been reported in Brazilian strains. Looking for any relationship among these cryptic DNA bands and the three-prototypical plasmids, we analyzed twelve strains displaying different plasmid content. The DNA bands were hybridized by southern blot with probes directed at the genes caf1, lcrV and pla located respectively on the plasmids pFra, pYV and pPst. The probes were constructed by PCR amplification and labeled with digoxigenin. The Pla probe hybridized with its target...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Y. pestis; Plasmids; Probes; Virulence genes.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000100006

Shigatoxigenic and atypical enteropathogenic Escherichia coli in fish for human consumption
Provedor de dados: 58
Autores: Cardozo,Marita Vedovelli; Borges,Clarissa Araújo; Beraldo,Lívia Gerbasi; Maluta,Renato Pariz; Pollo,Andressa Souza; Borzi,Mariana Monezi; dos Santos,Luis Fernando; Kariyawasam,Subhashinie; Ávila,Fernando Antônio de.
ABSTRACT Shigatoxigenic and enteropathogenic Escherichia coli with virulence and multidrug resistance profile were isolated from Nile tilapia. This study finding is of great importance to public health because they help understand this pathogen epidemiology in fish and demonstrate how these animals can transmit E. coli related diseases to humans.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: EPEC; Fish; MLST; STEC; Virulence genes.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000400936

Characterization of Klebsiella pneumoniae associated with cattle infections in southwest China using multi-locus sequence typing (MLST), antibiotic resistance and virulence-associated gene profile analysis
Provedor de dados: 58
Autores: 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

Prevalence of virulence genes among bulgarian nosocomial and cystic fibrosis isolates of Pseudomonas aeruginosa
Provedor de dados: 58
Autores: Mitov,Ivan; Strateva,Tanya; Markova,Boyka.
The aim of this study was to evaluate the prevalence of some virulence genes among 202 Pseudomonas aeruginosa isolates from cystic fibrosis (CF) patients (n=42) and non-CF in-patients (n=160) and to analyze the values according to the patient groups, infection localization and antimicrobial resistance. The following frequencies in all studied strains were established: algD (encoding GDP-mannose 6-dehydrogenase AlgD) - 91.1%, pilB (type IV fimbrial biogenesis protein PilB) - 23.8%, nan1 (neuraminidase) - 21.3%, lasB (elastase LasB) - 100%, plcH (haemolytic phospholipase C precursor) - 91.6%, exoS (exoenzyme S) - 62.4%, and exoU (exoenzyme U) - 30.2%. The prevalence of nan1 was significantly higher (P&lt;0.01) in CF isolates (38.1%) than that in non-CF...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pseudomonas aeruginosa; Virulence genes; Polymerase chain reaction; Cystic fibrosis isolates; Non-cystic fibrosis isolates.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300008

A DNA pooling based system to detect Escherichia coli virulence factors in fecal and wastewater samples
Provedor de dados: 58
Autores: Luz María Chacón,J; Lizeth Taylor,C; Carmen Valiente,A; Irene Alvarado,P; Ximena Cortés,B.
The availability of a useful tool for simple and timely detection of the most important virulent varieties of Escherichia coli is indispensable. To this end, bacterial DNA pools which had previously been categorized were obtained from isolated colonies as well as selected in terms of utilized phenotype; the pools were assessed by two PCR Multiplex for the detection of virulent E. coli eaeA, bfpA, stx1, stx2, ipaH, ST, LT, and aatA genes, with the 16S gene used as DNA control. The system was validated with 66 fecal samples and 44 wastewater samples. At least one positive isolate was detected by a virulent gene among the 20 that were screened. The analysis of fecal samples from children younger than 6 years of age detected frequencies of 25% LT positive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Virulence genes; Wastewater; Fecal; Screening system; Escherichia coli.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400012

Adhesion, biofilm and genotypic characteristics of antimicrobial resistant Escherichia coli isolates
Provedor de dados: 58
Autores: Cergole-Novella,Maria C.; Pignatari,Antonio C.C.; Guth,Beatriz E.C.
Aggregative adherence to human epithelial cells, most to renal proximal tubular (HK-2) cells, and biofilm formation was identified among antimicrobial resistant Escherichia coli strains mainly isolated from bacteremia. The importance of these virulence properties contributing to host colonization and infection associated with multiresistant E. coli should not be neglected.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adherence; Biofilm; Extraintestinal Escherichia coli; Antimicrobial resistance; Virulence genes.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100167

Characterization of virulence genes cagA and vacA in Helicobacter Pylori and their prevalence in gastrointestinal disorders
Provedor de dados: 58
Autores: Cogo,Laura Lúcia; Monteiro,Cristina Leise Bastos; Nogueira,Keite da Silva; Palmeiro,Jussara Kasuko; Ribeiro,Marcelo Lima; Camargo,Eloá Ramalho de; Neves,Daniel Locatelli; Nascimento,Aguinaldo José do; Costa,Libera Maria Dalla.
Prevalence of H. pylori infection was determined using cultures of gastric biopsy samples of patients attended at the academic hospital of the Federal University of Paraná, Curitiba, Paraná, Brazil. Molecular methods were used to characterize the cagA and vacA genes from bacterial isolates associated with different diseases presented by patients. Out of a total of 81, forty-two gastric biopsy samples tested were positive for H. pylori, with a prevalence of 51.9%. No significant difference was found with regard to the gender (p=0.793) and age (p=0.183) of the patients. Genotype s1m1 vacA gene was found in 67% of the cases of peptic ulcer investigated (p=1.0), despite the limited number of patients with this disease (n=3). A correlation between the presence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Helicobacter pylori; Virulence genes; CagA; VacA.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400007

Vibrio cholerae O1 from superficial water of the Tucunduba Stream, Brazilian Amazon
Provedor de dados: 58
Autores: Sá,L.L.C.; Vale,E.R.V.; Garza,D.R.; Vicente,A.C.P.
Isolation and genetic characterization of an environmental Vibrio cholerae O1 from the Amazon is reported. This strain lacks two major virulence factors - CTX and TCP - but carries other genes related to virulence. Genetic similarity with epidemic strains is evaluated and the importance of V. cholerae surveillance in the Amazon is emphasized.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vibrio cholerae O1; Environment; Amazon; Virulence genes; PFGE.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200027

Phenotypic and genotypic characterization of Salmonella Enteritidis isolates
Provedor de dados: 58
Autores: Oliveira,Sílvia Dias de; Bessa,Marjo Cadó; Santos,Luciana Ruschel dos; Cardoso,Marisa Ribeiro de Itapema; Brandelli,Adriano; Canal,Cláudio Wageck.
In order to study the epidemiology of Salmonella Enteritidis outbreaks and determine the source of contamination so that a recurrence can be avoided, detailed characterization is necessary. Thus, the purpose of this study was to verify whether rep-PCR was able to discriminate among Salmonella Enteritidis isolates. Phage typing, detection of virulence genes and antimicrobial resistance testing were also associated to rep-PCR results. One hundred and two S. Enteritidis isolates from broiler carcasses, food, human, pigs, poultry-related samples, and nine isolates from other countries were genotypically typed by REP-PCR, ERIC-PCR and BOX-PCR, collectively called rep-PCR. Phage typing, detection of virulence genes and antimicrobial resistance testing were also...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonella Enteritidis; Rep-PCR; Phage typing; Antimicrobial resistance; Virulence genes.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000400025

Phenotypic and genotypic characterization of Streptococcus agalactiae in pregnant women: first study in a province of Argentina
Provedor de dados: 58
Autores: 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

Characterization of Vibrio cholerae isolates from 1976 to 2013 in Shandong Province, China
Provedor de dados: 58
Autores: Lü,Hui; Yuan,Yuqi; Sun,Na; Bi,Zhenwang; Guan,Bing; Shao,Kun; Wang,Tongzhan; Bi,Zhenqiang.
Abstract Cholera continues to be a serious public health issue in developing countries. We analyzed the epidemiological data of cholera from 1976 to 2013 in Shandong Province, an eastern coastal area of China. A total of 250 Vibrio cholerae isolates were selected for PCR analysis of virulence genes and pulsed-field gel electrophoresis (PFGE). The analysis of the virulence genes showed that the positive rates for tcpA and tcpI were the highest among strains from the southwest region, which had the highest incidence rate of cholera. Low positive rates for tcpA, tcpI and ctxAB among isolates from after 2000 may be an influencing factor contributing to the contemporary decline in cholera incidence rates. Spatiotemporal serotype shifts (Ogawa, Inaba, Ogawa,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vibrio cholerae; Epidemiology; PFGE; Virulence genes.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000100173

Antimicrobial resistance and virulence gene profiles in P. multocida strains isolated from cats
Provedor de dados: 58
Autores: Ferreira,Thais Sebastiana Porfida; Felizardo,Maria Roberta; Gobbi,Debora Dirani Sena de; Moreno,Marina; Moreno,Andrea Micke.
Cats are often described as carriers of Pasteurella multocida in their oral microbiota. This agent is thought to cause pneumonia, conjunctivitis, rhinitis, gingivostomatitis, abscess and osteonecrosis in cats. Human infection with P. multocida has been described in several cases affecting cat owners or after cat bites. In Brazil, the cat population is approximately 21 million animals and is increasing, but there are no studies of the presence of P. multocida in the feline population or of human cases of infection associated with cats. In this study, one hundred and ninety-one healthy cats from owners and shelters in São Paulo State, Brazil, were evaluated for the presence of P. multocida in their oral cavities. Twenty animals were positive for P....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cat; Pasteurela multocida; Virulence genes; Resistance; Isolation.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100271

Frequency of virulence genes in Escherichia coli strains isolated from piglets with diarrhea in the North Parana State, Brazil
Provedor de dados: 58
Autores: Vidotto,Marilda C.; Lima,Natália C.S. de; Fritzen,Juliana T.T.; Freitas,Júlio C. de; Venâncio,Emerson J.; Ono,Mario A.
Identification of Escherichia coli causing porcine postweaning diarrhea requires knowledge regarding the prevalent pathotypes within a given region. A total of 100Escherichia coli isolates from piglets with diarrhea in Londrina city, Parana State, South Brazil, were screened for the presence of genes for F4, F5, F6, F18, F41 fimbrial antigens by specific probes and for enterotoxins (STa, STb, LT and STx2e) by polymerase chain reaction (PCR). The results showed that 60% of the isolates were positive for one or more of the fimbrial antigens and 92% were positive at least for one of the virulence factors examined. Virulence factor genes detected were F4 (44%), F18 (38%), F5 (30%), F41 (32%), F6 (25%), LTp-I (71%), STa (40%), STb (47%) and STx2e (3%). Twenty...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Porcine Escherichia coli; Virulence genes; Postweaning diarrhea; Toxins.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000100035