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| Angelini,Michelle; Stehling,Eliana Guedes; Moretti,Maria Luiza; Silveira,Wanderley Dias da. |
| Shigella spp., the human pathogen responsible for shigellosis, is highly infectious even at low levels. The incidence rate of shigellosis varies with geographical distribution, location human development index, and age groups, being higher among children aged under 5 years. In Brazil, a few works indicate that shigellosis cases are underestimated, with S. flexneri and S. sonnei strains being the major agents responsible for the shigellosis cases. The present study used pulsed field gel electrophoresis (PFGE) to investigate the molecular epidemiology of 119 strains of S. sonnei and S. flexneri isolated from shigellosis cases that occurred in the metropolitan areas of Ribeirão Preto and Campinas Cities, São Paulo Sate, southeast Brazil. The results indicated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Shigella sonnei; Shigella flexneri; Epidemiology; Characterization; PFGE. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300034 |
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| Angelini,Michelle; Silveira,Wanderley Dias da; Campos,Tatiana Amabile de; Cai,Silvana; Castro,Antonio Fernando Pestana de. |
| Streptococcus ssp are important components of the dental biofilm and Streptococcus crista is considered to be an interesting model of bacterial interactions taking place in this biofilm. In the present work, S. crista strains were isolated from the dental biofilm of Brazilian individuals and studied with respect to their biological characteristics and their molecular profile by means of AP-PCR techniques, using the RR2, 434, OPR2, OPR8, and OPR13 primers. Results allowed us to build a similarity dendrogram. Analysis of the similarity dendrogram allowed the separation of the studied strains into similarity groups. All isolates presented fibril tufts by Transmission Electron Microscopy (TEM). These isolates were able to bind to salivary amylase and to adhere... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological characterization; Molecular characterization; Dendrogram analysis; Biofilm. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000200005 |
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