K. D. dos Santos

Publications62
h-index22
Citations1,358
Highly Influential Citations66
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Staphylococcus haemolyticus as an Important Hospital Pathogen and Carrier of Methicillin Resistance Genes
ABSTRACT Phenotypic and molecular methods were used to characterize the antibiotic resistance of 64 clinical isolates of Staphylococcus haemolyticus. By PCR of the mecA gene, 87% were found to be… Expand
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Inhibitory properties of Coffea canephora extract against oral bacteria and its effect on demineralisation of deciduous teeth.
OBJECTIVES The antibacterial activity of Coffea canephora extract was evaluated in vitro against Streptococcus mutans and Streptococcus sobrinus. The viability of planktonic cells was analysed by… Expand
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Modification of the Congo red agar method to detect biofilm production by Staphylococcus epidermidis.
Staphylococcus epidermidis in immunocompromised patients can cause bacteremia related to the use of catheter due to biofilm production. There are different phenotypic methods to detect biofilm… Expand
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Methicillin-resistant Staphylococcus aureus in Rio de Janeiro hospitals: dissemination of the USA400/ST1 and USA800/ST5 SCCmec type IV and USA100/ST5 SCCmec type II lineages in a public institution…
BACKGROUND Methicillin-resistant Staphylococcus aureus (MRSA) infections have changed since certain non-multiresistant MRSA lineages have emerged in hospitals. In this study, 99 MRSA isolates, 77… Expand
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Staphylococcus aureus, Staphylococcus epidermidis and Staphylococcus haemolyticus: methicillin-resistant isolates are detected directly in blood cultures by multiplex PCR.
In this study, we standardized and evaluated a multiplex-PCR methodology using specific primers to identify Staphylococcus aureus, Staphylococcus epidermidis and Staphylococcus haemolyticus and their… Expand
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Production of bacteriocins by coagulase-negative staphylococci involved in bovine mastitis.
In the present study, 188 coagulase-negative Staphylococcus (CNS) strains were isolated from bovine mastitis cases from 56 different Brazilian dairy herds, located in the Southeast region of the… Expand
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Characterization of virulence factors and clonal diversity of Enterococcus faecalis isolates from treated dental root canals.
The high prevalence of Enterococcus faecalis in root canal treated teeth with post-treatment disease, as evidenced by both molecular and traditional culturing methods, suggests that this species may… Expand
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Simplified and Reliable Scheme for Species-Level Identification of Staphylococcus Clinical Isolates
ABSTRACT Reliable and rapid identification of staphylococcal strains continues to be a problem faced by many microbiology laboratories. This study evaluates a simplified method that uses a flowchart… Expand
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Staphylococcus aureus isolates belonging to different multilocus sequence types present specific virulence gene profiles.
To characterize 73 Staphylococcus aureus isolates from infections in an orthopedic hospital in Rio de Janeiro, we investigated the SCCmec types, the clonality by pulsed field gel electrophoresis and… Expand
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Detection of ileS-2 gene encoding mupirocin resistance in methicillin-resistant Staphylococcus aureus by multiplex PCR.
The presence of the ileS-2 gene, responsible for mupirocin resistance, in clinical isolates of methicillin-resistant Staphylococcus aureus was determined by multiplex polymerase chain reaction. Three… Expand
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