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

Breakpoints

Respiratory Programme

Bacteraemia Programme

Breakpoints Notices

Title Text External Link
BREAKPOINT HISTORY
2009-07-01

BREAKPOINT HISTORY

From 1st July, version 8 BSAC breakpoints (January 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).

 
WHICH BREAKPOINTS?
2009-07-01
 

WHICH BREAKPOINTS?

The breakpoints used to classify isolates as susceptible/intemediate/resistant on this website are the version 8 BSAC breakpoints (January 2009). In a few cases, where BSAC breakpoints have not been set, EUCAST breakpoints are used (for S. pneumoniae with cli, dor, min and tec; alpha-haemolytic streptococci with dor, etp, ipm and mem; beta-haemolytic streptococci with dor, ipm, mem, min, tec and van; H. influenzae with min; and M. catarrhalis with amx, ctx and min).

More recent breakpoints may exist.

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BSAC BREAKPOINTS
2006-06-29

For the latest definitive BSAC breakpoints, please refer to the BSAC Standardized Disc Susceptibility Testing Method.

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CHANGING BREAKPOINTS
2006-06-29

We aim to use current breakpoints on this website. As a result, the percentages of isolates shown as susceptible/intermediate/resistant may differ from those published in previous papers or calculated on the website at an earlier date with earlier breakpoints.

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News

Notice IconBACTERAEMIA DATA 2008 AVAILABLE
08/02/2010
Data for bacteraemia isolates collected in 2008 are now available. Click on the Bacteraemia Data link on the left.
Notice IconPRESENTATIONS FROM ICAAC 2009 AND FIS 2009
08/02/2010
Posters presented at these conferences are available for download from the Publications link on the left.
Notice IconUPDATED PROTOCOLS
08/02/2010
The protocols have been updated to cover respiratory isolates collected in 2009/10 and bacteraemia isolates collected in 2009.
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