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<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR vAlign=bottom><TD align=left>Research article
</TD><TD align=right>
<!-- <rdf:RDF xmlns:cc="http://web.resource.org/cc/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:prism="http://prismstandard.org/namespaces/1.2/basic/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://purl.org/rss/1.0/"><cc:Work rdf:about="http://www.biomedcentral.com/1471-2334/7/29"><cc:license rdf:resource="http://creativecommons.org/licenses/by/2.0/"/></cc:Work><cc:License rdf:about="http://creativecommons.org/licenses/by/2.0/"><cc:permits rdf:resource="http://web.resource.org/cc/Reproduction"/><cc:permits rdf:resource="http://web.resource.org/cc/Distribution"/><cc:requires rdf:resource="http://web.resource.org/cc/Notice"/><cc:requires rdf:resource="http://web.resource.org/cc/Attribution"/><cc:permits rdf:resource="http://web.resource.org/cc/DerivativeWorks"/></cc:License><item rdf:about="http://www.biomedcentral.com/1471-2334/7/29"><title>Daptomycin antimicrobial activity tested against methicillin-resistant staphylococci and vancomycin-resistant enterococci isolated in European medical centers (2005)</title><dc:title>Daptomycin antimicrobial activity tested against methicillin-resistant staphylococci and vancomycin-resistant enterococci isolated in European medical centers (2005)</dc:title><dc:creator>Sader, Helio S.</dc:creator><dc:creator>Watters, Amy A.</dc:creator><dc:creator>Fritsche, Thomas R.</dc:creator><dc:creator>Jones, Ronald N.</dc:creator><dc:identifier>info:doi/10.1186/1471-2334-7-29</dc:identifier><dc:source>BMC Infectious Diseases 2007, 7:29</dc:source><dc:date>2007-04-18</dc:date>
BMC Infectious Diseases</prism:publicationName>
2007-04-18</prism:publicationDate>
7</prism:volume>
1</prism:number>
Research article</prism:section>
29</prism:startingPage></item></rdf:RDF> -->.</TD></TR></TBODY></TABLE>Daptomycin antimicrobial activity tested against methicillin-resistant staphylococci and vancomycin-resistant enterococci isolated in European medical centers (2005)
Helio S. Sader
, Amy A. Watters , Thomas R. Fritsche and Ronald N. Jones
BMC Infectious Diseases 2007, 7:29 doi:10.1186/1471-2334-7-29
<TABLE class=smalltext cellSpacing=0 cellPadding=0><TBODY><TR><TD>Published</TD><TD width=25> </TD><TD>18 April 2007</TD></TR></TBODY></TABLE>
Abstract (provisional)
</P>
The complete article is available as a provisional PDF. The fully formatted PDF and HTML versions are in production.
Background
Daptomycin is a cyclic lipopeptide with potent activity and broad spectrum against Gram-positive bacteria currently used for the treatment of complicated skin and skin structure infections and bacteremia, including right sided endocarditis. We evaluated the in vitro activity of this compound and selected comparator agents tested against clinical strains of staphylococci and enterococci collected in European medical centers in 2005.
Methods
A total of 4,640 strains from 23 medical centers located in 10 European countries, Turkey and Israel (SENTRY Program platform) were tested for susceptibility by reference broth microdilution methods according to Clinical and Laboratory Standards Institute guidelines and interpretative criteria. Mueller-Hinton broth was supplemented to 50 mg/L Ca++ for testing daptomycin. Results for oxacillin (methicillin)-resistant staphylococci and vancomycin-resistant enterococci were analyzed separately.
Results
Oxacillin resistance rates among Staphylococcus aureus varied from 2.1% in Sweden to 42.5% in the United Kingdom (UK) and 54.7% in Ireland (29.1% overall), while vancomycin resistance rates varied from 0.0% in France, Sweden and Switzerland to 66.7% in the UK and 71.4% in Ireland among Enterococcus faecium (17.9% overall). All S. aureus strains were inhibited at daptomycin MIC of 1 mg/L (MIC50/90, 0.25/0.5 mg/L; 100.0% susceptible) and only one coagulase-negative staphylococci strain (0.1%) showed an elevated (>1 mg/L) daptomycin MIC value (4 mg/L). Among E. faecalis (MIC50/90, 0.5/1 mg/L; 100% susceptible) the highest daptomycin MIC value was 2 mg/L; while among E. faecium (MIC50/90, 2/4 mg/L; 100% susceptible) the highest MIC result was 4 mg/L.
Conclusions
Daptomycin showed excellent in vitro activity against staphylococci and enterococci collected in European medical centers in 2005 and resistance to oxacillin, vancomycin or quinupristin/dalfopristin did not compromise its activity overall against these pathogens. Based on these results and those of previous publications, daptomycin appears to be an excellent therapeutic option for serious infections caused by oxacillin-resistant staphylococci and vancomycin-resistant enterococci in Europe.
</TD><TD align=right>
<!-- <rdf:RDF xmlns:cc="http://web.resource.org/cc/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:prism="http://prismstandard.org/namespaces/1.2/basic/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://purl.org/rss/1.0/"><cc:Work rdf:about="http://www.biomedcentral.com/1471-2334/7/29"><cc:license rdf:resource="http://creativecommons.org/licenses/by/2.0/"/></cc:Work><cc:License rdf:about="http://creativecommons.org/licenses/by/2.0/"><cc:permits rdf:resource="http://web.resource.org/cc/Reproduction"/><cc:permits rdf:resource="http://web.resource.org/cc/Distribution"/><cc:requires rdf:resource="http://web.resource.org/cc/Notice"/><cc:requires rdf:resource="http://web.resource.org/cc/Attribution"/><cc:permits rdf:resource="http://web.resource.org/cc/DerivativeWorks"/></cc:License><item rdf:about="http://www.biomedcentral.com/1471-2334/7/29"><title>Daptomycin antimicrobial activity tested against methicillin-resistant staphylococci and vancomycin-resistant enterococci isolated in European medical centers (2005)</title><dc:title>Daptomycin antimicrobial activity tested against methicillin-resistant staphylococci and vancomycin-resistant enterococci isolated in European medical centers (2005)</dc:title><dc:creator>Sader, Helio S.</dc:creator><dc:creator>Watters, Amy A.</dc:creator><dc:creator>Fritsche, Thomas R.</dc:creator><dc:creator>Jones, Ronald N.</dc:creator><dc:identifier>info:doi/10.1186/1471-2334-7-29</dc:identifier><dc:source>BMC Infectious Diseases 2007, 7:29</dc:source><dc:date>2007-04-18</dc:date>BMC Infectious Diseases</prism:publicationName>
2007-04-18</prism:publicationDate>
7</prism:volume>
1</prism:number>
Research article</prism:section>
29</prism:startingPage></item></rdf:RDF> -->.</TD></TR></TBODY></TABLE>Daptomycin antimicrobial activity tested against methicillin-resistant staphylococci and vancomycin-resistant enterococci isolated in European medical centers (2005)
Helio S. Sader
, Amy A. Watters , Thomas R. Fritsche and Ronald N. Jones BMC Infectious Diseases 2007, 7:29 doi:10.1186/1471-2334-7-29
<TABLE class=smalltext cellSpacing=0 cellPadding=0><TBODY><TR><TD>Published</TD><TD width=25> </TD><TD>18 April 2007</TD></TR></TBODY></TABLE>
Abstract (provisional)
</P>
The complete article is available as a provisional PDF. The fully formatted PDF and HTML versions are in production.
Background
Daptomycin is a cyclic lipopeptide with potent activity and broad spectrum against Gram-positive bacteria currently used for the treatment of complicated skin and skin structure infections and bacteremia, including right sided endocarditis. We evaluated the in vitro activity of this compound and selected comparator agents tested against clinical strains of staphylococci and enterococci collected in European medical centers in 2005.
Methods
A total of 4,640 strains from 23 medical centers located in 10 European countries, Turkey and Israel (SENTRY Program platform) were tested for susceptibility by reference broth microdilution methods according to Clinical and Laboratory Standards Institute guidelines and interpretative criteria. Mueller-Hinton broth was supplemented to 50 mg/L Ca++ for testing daptomycin. Results for oxacillin (methicillin)-resistant staphylococci and vancomycin-resistant enterococci were analyzed separately.
Results
Oxacillin resistance rates among Staphylococcus aureus varied from 2.1% in Sweden to 42.5% in the United Kingdom (UK) and 54.7% in Ireland (29.1% overall), while vancomycin resistance rates varied from 0.0% in France, Sweden and Switzerland to 66.7% in the UK and 71.4% in Ireland among Enterococcus faecium (17.9% overall). All S. aureus strains were inhibited at daptomycin MIC of 1 mg/L (MIC50/90, 0.25/0.5 mg/L; 100.0% susceptible) and only one coagulase-negative staphylococci strain (0.1%) showed an elevated (>1 mg/L) daptomycin MIC value (4 mg/L). Among E. faecalis (MIC50/90, 0.5/1 mg/L; 100% susceptible) the highest daptomycin MIC value was 2 mg/L; while among E. faecium (MIC50/90, 2/4 mg/L; 100% susceptible) the highest MIC result was 4 mg/L.
Conclusions
Daptomycin showed excellent in vitro activity against staphylococci and enterococci collected in European medical centers in 2005 and resistance to oxacillin, vancomycin or quinupristin/dalfopristin did not compromise its activity overall against these pathogens. Based on these results and those of previous publications, daptomycin appears to be an excellent therapeutic option for serious infections caused by oxacillin-resistant staphylococci and vancomycin-resistant enterococci in Europe.
