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Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Esche...
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| Zeitschriftentitel: | Journal of Clinical Microbiology |
|---|---|
| Personen und Körperschaften: | , , , , , |
| In: | Journal of Clinical Microbiology, 45, 2007, 5, S. 1478-1482 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Society for Microbiology
|
| Schlagwörter: |
| author_facet |
Bell, Jan M. Chitsaz, Mohsen Turnidge, John D. Barton, Mary Walters, Luke J. Jones, Ronald N. Bell, Jan M. Chitsaz, Mohsen Turnidge, John D. Barton, Mary Walters, Luke J. Jones, Ronald N. |
|---|---|
| author |
Bell, Jan M. Chitsaz, Mohsen Turnidge, John D. Barton, Mary Walters, Luke J. Jones, Ronald N. |
| spellingShingle |
Bell, Jan M. Chitsaz, Mohsen Turnidge, John D. Barton, Mary Walters, Luke J. Jones, Ronald N. Journal of Clinical Microbiology Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program Microbiology (medical) |
| author_sort |
bell, jan m. |
| spelling |
Bell, Jan M. Chitsaz, Mohsen Turnidge, John D. Barton, Mary Walters, Luke J. Jones, Ronald N. 0095-1137 1098-660X American Society for Microbiology Microbiology (medical) http://dx.doi.org/10.1128/jcm.02470-06 <jats:title>ABSTRACT</jats:title> <jats:p> A negative extended-spectrum β-lactamase (ESBL) confirmation test result obtained after a positive ESBL screening test result using Clinical and Laboratory Standards Institute methods has been a common occurrence among isolates of <jats:italic>Escherichia coli</jats:italic> and <jats:italic>Klebsiella pneumoniae</jats:italic> in the SENTRY Antimicrobial Surveillance Program in the Asia-Pacific region. Among isolates collected between 1998 and 2004 this screen-positive, nonconfirmed profile (failed to show clavulanate synergy) was observed in 8.9% of 4,515 <jats:italic>E. coli</jats:italic> isolates and 20.3% of 2,303 <jats:italic>K. pneumoniae</jats:italic> isolates. We then selected 52 <jats:italic>E. coli</jats:italic> isolates and 68 <jats:italic>K. pneumoniae</jats:italic> isolates with a negative ESBL confirmation test, as well as comparable number of isolates with confirmed ESBL-positive tests, and examined them for the presence of TEM, SHV, plasmid-borne <jats:italic>ampC</jats:italic> , and CTX-M genes. We found that 62% of nonconfirming <jats:italic>E. coli</jats:italic> isolates and 75% of nonconfirming <jats:italic>K. pneumoniae</jats:italic> harbored a plasmid-borne AmpC enzyme of the CIT or DHA type. The majority of nonconfirming <jats:italic>E. coli</jats:italic> and <jats:italic>K. pneumoniae</jats:italic> from the Asia-Pacific region harbor important β-lactamases, and a positive screening test alone should be sufficient grounds to report resistance to extended-spectrum cephalosporins in this region. </jats:p> Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of <i>Escherichia coli</i> and <i>Klebsiella pneumoniae</i> : Results from the SENTRY Asia-Pacific Surveillance Program Journal of Clinical Microbiology |
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Journal of Clinical Microbiology |
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49 |
| title |
Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| title_unstemmed |
Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| title_full |
Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| title_fullStr |
Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| title_full_unstemmed |
Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| title_short |
Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| title_sort |
prevalence and significance of a negative extended-spectrum β-lactamase (esbl) confirmation test result after a positive esbl screening test result for isolates of
<i>escherichia coli</i>
and
<i>klebsiella pneumoniae</i>
: results from the sentry asia-pacific surveillance program |
| topic |
Microbiology (medical) |
| url |
http://dx.doi.org/10.1128/jcm.02470-06 |
| publishDate |
2007 |
| physical |
1478-1482 |
| description |
<jats:title>ABSTRACT</jats:title>
<jats:p>
A negative extended-spectrum β-lactamase (ESBL) confirmation test result obtained after a positive ESBL screening test result using Clinical and Laboratory Standards Institute methods has been a common occurrence among isolates of
<jats:italic>Escherichia coli</jats:italic>
and
<jats:italic>Klebsiella pneumoniae</jats:italic>
in the SENTRY Antimicrobial Surveillance Program in the Asia-Pacific region. Among isolates collected between 1998 and 2004 this screen-positive, nonconfirmed profile (failed to show clavulanate synergy) was observed in 8.9% of 4,515
<jats:italic>E. coli</jats:italic>
isolates and 20.3% of 2,303
<jats:italic>K. pneumoniae</jats:italic>
isolates. We then selected 52
<jats:italic>E. coli</jats:italic>
isolates and 68
<jats:italic>K. pneumoniae</jats:italic>
isolates with a negative ESBL confirmation test, as well as comparable number of isolates with confirmed ESBL-positive tests, and examined them for the presence of TEM, SHV, plasmid-borne
<jats:italic>ampC</jats:italic>
, and CTX-M genes. We found that 62% of nonconfirming
<jats:italic>E. coli</jats:italic>
isolates and 75% of nonconfirming
<jats:italic>K. pneumoniae</jats:italic>
harbored a plasmid-borne AmpC enzyme of the CIT or DHA type. The majority of nonconfirming
<jats:italic>E. coli</jats:italic>
and
<jats:italic>K. pneumoniae</jats:italic>
from the Asia-Pacific region harbor important β-lactamases, and a positive screening test alone should be sufficient grounds to report resistance to extended-spectrum cephalosporins in this region.
</jats:p> |
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| author | Bell, Jan M., Chitsaz, Mohsen, Turnidge, John D., Barton, Mary, Walters, Luke J., Jones, Ronald N. |
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| description | <jats:title>ABSTRACT</jats:title> <jats:p> A negative extended-spectrum β-lactamase (ESBL) confirmation test result obtained after a positive ESBL screening test result using Clinical and Laboratory Standards Institute methods has been a common occurrence among isolates of <jats:italic>Escherichia coli</jats:italic> and <jats:italic>Klebsiella pneumoniae</jats:italic> in the SENTRY Antimicrobial Surveillance Program in the Asia-Pacific region. Among isolates collected between 1998 and 2004 this screen-positive, nonconfirmed profile (failed to show clavulanate synergy) was observed in 8.9% of 4,515 <jats:italic>E. coli</jats:italic> isolates and 20.3% of 2,303 <jats:italic>K. pneumoniae</jats:italic> isolates. We then selected 52 <jats:italic>E. coli</jats:italic> isolates and 68 <jats:italic>K. pneumoniae</jats:italic> isolates with a negative ESBL confirmation test, as well as comparable number of isolates with confirmed ESBL-positive tests, and examined them for the presence of TEM, SHV, plasmid-borne <jats:italic>ampC</jats:italic> , and CTX-M genes. We found that 62% of nonconfirming <jats:italic>E. coli</jats:italic> isolates and 75% of nonconfirming <jats:italic>K. pneumoniae</jats:italic> harbored a plasmid-borne AmpC enzyme of the CIT or DHA type. The majority of nonconfirming <jats:italic>E. coli</jats:italic> and <jats:italic>K. pneumoniae</jats:italic> from the Asia-Pacific region harbor important β-lactamases, and a positive screening test alone should be sufficient grounds to report resistance to extended-spectrum cephalosporins in this region. </jats:p> |
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| spelling | Bell, Jan M. Chitsaz, Mohsen Turnidge, John D. Barton, Mary Walters, Luke J. Jones, Ronald N. 0095-1137 1098-660X American Society for Microbiology Microbiology (medical) http://dx.doi.org/10.1128/jcm.02470-06 <jats:title>ABSTRACT</jats:title> <jats:p> A negative extended-spectrum β-lactamase (ESBL) confirmation test result obtained after a positive ESBL screening test result using Clinical and Laboratory Standards Institute methods has been a common occurrence among isolates of <jats:italic>Escherichia coli</jats:italic> and <jats:italic>Klebsiella pneumoniae</jats:italic> in the SENTRY Antimicrobial Surveillance Program in the Asia-Pacific region. Among isolates collected between 1998 and 2004 this screen-positive, nonconfirmed profile (failed to show clavulanate synergy) was observed in 8.9% of 4,515 <jats:italic>E. coli</jats:italic> isolates and 20.3% of 2,303 <jats:italic>K. pneumoniae</jats:italic> isolates. We then selected 52 <jats:italic>E. coli</jats:italic> isolates and 68 <jats:italic>K. pneumoniae</jats:italic> isolates with a negative ESBL confirmation test, as well as comparable number of isolates with confirmed ESBL-positive tests, and examined them for the presence of TEM, SHV, plasmid-borne <jats:italic>ampC</jats:italic> , and CTX-M genes. We found that 62% of nonconfirming <jats:italic>E. coli</jats:italic> isolates and 75% of nonconfirming <jats:italic>K. pneumoniae</jats:italic> harbored a plasmid-borne AmpC enzyme of the CIT or DHA type. The majority of nonconfirming <jats:italic>E. coli</jats:italic> and <jats:italic>K. pneumoniae</jats:italic> from the Asia-Pacific region harbor important β-lactamases, and a positive screening test alone should be sufficient grounds to report resistance to extended-spectrum cephalosporins in this region. </jats:p> Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of <i>Escherichia coli</i> and <i>Klebsiella pneumoniae</i> : Results from the SENTRY Asia-Pacific Surveillance Program Journal of Clinical Microbiology |
| spellingShingle | Bell, Jan M., Chitsaz, Mohsen, Turnidge, John D., Barton, Mary, Walters, Luke J., Jones, Ronald N., Journal of Clinical Microbiology, Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program, Microbiology (medical) |
| title | Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| title_full | Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| title_fullStr | Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| title_full_unstemmed | Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| title_short | Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| title_sort | prevalence and significance of a negative extended-spectrum β-lactamase (esbl) confirmation test result after a positive esbl screening test result for isolates of <i>escherichia coli</i> and <i>klebsiella pneumoniae</i> : results from the sentry asia-pacific surveillance program |
| title_unstemmed | Prevalence and Significance of a Negative Extended-Spectrum β-Lactamase (ESBL) Confirmation Test Result after a Positive ESBL Screening Test Result for Isolates of Escherichia coli and Klebsiella pneumoniae : Results from the SENTRY Asia-Pacific Surveillance Program |
| topic | Microbiology (medical) |
| url | http://dx.doi.org/10.1128/jcm.02470-06 |