MSH antibiograms

MSH antibiograms

For health care professionals

Please find below links to antibiograms for our Markham and Uxbridge sites. These are summaries of antimicrobial susceptibilities of bacterial isolates compiled on an annual basis. Antimicrobial susceptibility is a determination of which antibiotics a specific bacteria is vulnerable to.

Reported antimicrobial susceptibilities are combined from all infectious sources (i.e., blood, urine, surgical site, etc.) from inpatient samples and according to the Clinical and Laboratory Standards Institute (CLSI) guidelines.

Antibiograms provide information to guide choice of empiric therapy (treatment based on professional experience). They are also used to track bacterial resistance patterns.

The Antimicrobial Stewardship Program

(ASP) at MSH was successful in reducing the use of fluoroquinolones, such as ciprofloxacin, in hospitalized patients. This has been reflected in the susceptibility of Pseudomonas aeruginosa to ciprofloxacin which has increased from 62 per cent in 2006 to 91 per cent in 2018. The ASP team continues to encourage judicial use of fluoroquinolones for both inpatients and patients in the community to help maintain and further improve this susceptibility.