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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Breakpoints

Respiratory Programme

Bacteraemia Programme

Breakpoint Notices

Title Text
BREAKPOINT HISTORY
2007-02-13

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

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

From 6th February 2007, version 6.1 BSAC breakpoints (Feb 2007).

WHICH BREAKPOINTS?
2007-02-13

The breakpoints used to classify isolates as susceptible/intemediate/resistant on this website are the version 6.1 BSAC breakpoints (February 2007). In a few cases, where BSAC breakpoints have not been set, EUCAST breakpoints are used (for S. pneumoniae with tec, staphylococci with dap, and beta-haemolytic streptococci with dap, ipm, mem, tec and van).

More recent breakpoints may exist.
BSAC BREAKPOINTS
2006-06-29

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

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 IconNEW DATA
11/10/2007
Data are now available for Bacteraemia 2006 and Respiratory 2006-07.
Notice IconPOSTERS AND SLIDES 2007
10/10/2007
Posters and slides shown at ECCMID 2007 and ICAAC 2007 are available to download. Click the 'Publications' link and select the programme that interests you.
Notice IconNEW BREAKPOINTS
13/02/2007
Breakpoints have been updated to version 6.1, February 2007.
Notice IconNEW DATA Sept 2006
13/09/2006
Data for bacteraemia 2005 and respiratory 2005-06 are now available.
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