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Antibiograms

Sunnybrook Health Sciences Centre 

2021 Sunnybrook – Entire Hospital (Gram Positive and Gram Negative)

2021 Sunnybrook - Entire Hospital
Duplicate isolates within 30 days, surveillance and urine specimens excluded
Gram Positive Total Isolates % of isolates susceptible
Ampicillin Clindamycin Cloxacillin* Penicillin Doxycycline TMP/SMX Vancomycin
Coagulase Negative Staphylococci 208 60 42 93 69 100
Enterococcus faecalis 120 99 100
Enterococcus faecium 55 39 78
Staphylococcus aureus 600 78 84 95 99 100
MRSA 96 70 R 83 97 100
MSSA 504 80 100 97 100 100
Viridans Streptococci 69 89 90 100
*Staphylococci that test susceptible to cloxacillin are also susceptible to cefazolin

Gram Negative Total Isolates % of isolates susceptible
Amikacin Ampicillin Cefazolin Ceftazidime Ceftriaxone Ciprofloxacin Gentamicin Meropenem Piperacillin/tazobactam Tobramycin TMP/SMX
Acinetobacter baumannii Complex 40 100 80 85 95 95 78 90 90
Enterobacter cloacae complex 117 100 R R R 93 100 98 R 99 97
Escherichia coli 301 100 50 73 77 65 91 99 75 90 71
ESBL 64 99 R R R 11 78 99 R 90 31
non ESBL 236 100 64 93 99 79 95 100 95 95 81
Klebsiella aerogenes (previously known as Enterobacter aerogenes) 49 100 R R R 90 100 100 R 100 100
Klebsiella oxytoca 48 100 R 79 92 92 98 100 92 95 96
Klebsiella pneumoniae 130 100 R 95 100 92 98 100 97 100 98
Proteus mirabilis 31 100 74 84 100 87 97 100 100 97 84
Pseudomonas aeruginosa 284 100 R R 79 79 98 79 72 99
Serratia marcescens 59 100 80 100 100 100 100
Stenotrophomonas maltophilia 46 NA 93

R = considered inherently resistant, NA = not available

2021 Sunnybrook – ICU (Gram Positive and Gram Negative)

2021 Sunnybrook - ICU
Duplicate isolates within 30 days, surveillance and urine specimens excluded
Gram Positive Total Isolates % of isolates susceptible
Clindamycin Cloxacillin* Tetracycline TMP/SMX Vancomycin
Coagulase Negative Staphylococci 36 50 25 92 44 100
Staphylococcus aureus 116 81 83 96 100 100
MRSA 20 75 R 90 100 100
MSSA 96 82 100 97 100 100
*Staphylococci that test susceptible to cloxacillin are also susceptible to cefazolin

Gram Negative Total Isolates % of isolates susceptible
Amikacin Ampicillin Cefazolin Ceftazidime Ceftriaxone Ciprofloxacin Gentamicin Meropenem Piperacillin/tazobactam Tobramycin TMP/SMX
Enterobacter cloacae complex 34 100 R R R 94 100 100 R 100 97
Escherichia coli 66 100 44 64 70 64 91 99 67 86 62
ESBL 19 100 R R R 11 78 99 R 56 6
non ESBL 47 100 62 89 98 83 96 100 94 98 83
Klebsiella pneumoniae 38 100 R 92 100 89 100 100 100 100 100
Pseudomonas aeruginosa 72 100 65 67 97 65 60

98

R = considered inherently resistant

2021 Sunnybrook – Urine (Gram Positive and Gram Negative)

2021 Sunnybrook Urine Antibiogram
Duplicate isolates within 30 days excluded
Gram Positive Total Isolates % of isolates susceptible
Ampicillin Cloxacillin* Meropenem Nitrofurantoin Piperacillin/tazobactam Tobramycin TMP/SMX Vancomycin
Staphylococcus aureus 74 89 89 89 99 100
MRSA 8 R R R 100 100
MSSA 66 100 100 100 98 100
Enterococcus spp. 702 89 89 98
*Staphylococci that test susceptible to cloxacillin are also susceptible to cefazolin

Gram Negative Total Isolates % of isolates susceptible
Amikacin Ampicillin Cefazolin Ceftazidime Ceftriaxone Ciprofloxacin Gentamicin Meropenem Nitrofurantoin Piperacillin/tazobactam Tobramycin TMP/SMX
Citrobacter freundii 39 100 87 97 100 95 97 97
Citrobacter koseri 35 100 100 100 100 89 100 100
Enterobacter cloacae complex 64 100 R R R 89 98 100 46 R 98 91
Escherichia coli 1073 100 52 79 83 60 90 100 97 80 90 76
ESBL 179 100 R R R 12 73 100 94 R 70 49
non ESBL 894 100 62 95 100 70 94 100 98 96 84 81
Klebsiella oxytoca 63 100 R 73 97 98 98 100 77 90 98 95
Klebsiella pneumoniae 241 100 R 90 92 84 98 100 21 89 96 90
ESBL 18 100 R R R 28 72 100 17 R 61 28
non ESBL 223 100 R 97 99 88 99 100 21 96 99 95
Morganella morganii 39 100 77 92 100 92 82
Proteus mirabilis 124 100 81 94 100 89 94 100 R 100 95 90
Pseudomonas aeruginosa 159 99 91 82 97 89 84 99
R= Considered inherently resistant

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