The British Society for Antimicrobial Chemotherapy is working with the pharmaceutical industry to establish a series of antibiotic and antimicrobial resistance surveillance programmes. Image: microscope
The British Society for Antimicrobial Chemotherapy provides results from antibiotic resistance and antimicrobial resistance surveillance programmes. Image: British Society for Antimicrobial Chemotherapy Logo
The British Society for Antimicrobial Chemotherapy also offers analyses of the data in MRSA and MIC distributions. Image: British Society for Antimicrobial Chemotherapy Resistence Surviellance Websites

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Title Text
BREAKPOINT HISTORY
2013-07-24

BREAKPOINT HISTORY

From 23rd July 2013, version 12 BSAC breakpoints (May 2013).

From 14th November 2012, version 11.1 BSAC breakpoints (May 2012).

From 28th June 2011 to 14th November 2012, version 10.2 BSAC breakpoints (May 2011).

From 26th April 2011 to 28th June 2011, version 10 BSAC breakpoints (January 2011).

From 10th March 2010 to 26th April 2011, version 9 BSAC breakpoints (Jan 2010).

From 1st July 2009 to 10th March 2010, version 8 BSAC breakpoints (Jan 2009).

From 26th September 2008 to 1st July 2009, version 7.1 BSAC breakpoints (Feb 2008).

From 6th Feb 2007 to 26th Sept 2008, version 6.1 BSAC breakpoints (Feb 2007).

From 14th March 2006 to 6th Feb 2007, version 5 BSAC breakpoints (Jan 2006).

From January 2006 to 14th March 2006, version 4 BSAC breakpoints (Jan 2005).

At each time, some EUCAST breakpoints were used for a few combinations where BSAC breakpoints had not been set.

DEFINITIVE BREAKPOINTS
2013-07-24

DEFINITIVE BREAKPOINTS

This site lists breakpoints only for antibiotic/organism combinations tested in the BSAC Resistance Surveillance Project; they were extracted from BSAC and EUCAST sources in Jul 2013. Recommendations may have changed since then. Please visit the BSAC or EUCAST websites for the most recent complete annotated tables.

WHICH BREAKPOINTS?
2013-07-24

WHICH BREAKPOINTS?

The breakpoints used to classify isolates as susceptible/intermediate/resistant on this website are the version 12 BSAC breakpoints (May 2013), with a correction for Streptococci-oxa (S<=2). In a few cases, where BSAC breakpoints have not been set, EUCAST v 3.1 breakpoints (Feb 2013) are used (for S. pneumoniae with dor, min and tec; alpha-haemolytic streptococci with amp, cxm, dor, etp, ipm and mem; beta-haemolytic streptococci with lvx, min, mxf, rif, tec and van; enterococci with ipm; Acinetobacter with lvx; H. influenzae with min; and M. catarrhalis with azm, ctx and min).

More recent breakpoints may exist.

UPDATED PROTOCOLS
2013-02-26

UPDATED PROTOCOLS

The protocols have been updated to cover respiratory isolates collected in 2012/13 and bacteraemia isolates collected in 2012.

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Notice IconECCMID SUCCESS - BARCELONA 2014
07/02/2014
A poster Streptococci other than S. pneumoniae - 12-Year Resistance Trends in Bacteraemia in the UK and Ireland will be presented in Barcelona on 13 May 2014. This is the 12th consecutive year of publication by the BSAC Resistance Surveillance Project at ECCMID (www.eccmid.org).
Notice IconUPDATED PROTOCOLS
26/02/2013
The protocols have been updated to cover respiratory isolates collected in 2011/12 and bacteraemia isolates collected in 2011.
Notice IconBACTERAEMIA DATA 2011 AVAILABLE
16/10/2012
Data for bacteraemia isolates collected in 2009 are now available. Click on the Bacteraemia Data link on the left.
Notice IconPRESENTATIONS FROM ICAAC 2012 AND ECCMID 2012
01/10/2012
Posters presented at these conferences are available for download from the Publications link on the left.
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