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Antibiograms

Hong Kong East Cluster

Non-duplicate isolates from blood, urine and respiratory specimens. Interpreted according to CLSI. Nonsusceptible include both intermediate and resistant.
Overall prevalance of extended-spectrum beta-lactamases (ESBL) were 29% for E. coli, 13% for Klebsiella species,
NB : For severe infection caused by ESBL-producing organisms, ERTAPENEM, IMIPENEM and MEROPENEM are drug of choice for treatment
Nitrofurantoin: Susceptibility rate in urine isolates only.
Methicillin-resistant staphylococci are resistant to all available beta-lactam antibiotics in PYNEH drug formulary, except CEFTAROLINE.
GENTAMICIN is used only in combination with other active agents that test susceptible for staphylococcal infection.
Enterococcus species: In general, susceptibility to AMPICILLIN can be used to perdict susceptibility to these antibiotics:
Amoxicillin-clavulanate (AUGMENTIN)
Ampicillin-sulbactam (UNASYN)
Piperacillin-tazobactam (TAZOCIN)
Stenotrophomonas maltophilia : The CLSI testing method has no agreed antibiotic zone size for Ceftazidime and Ticarcillin + clavulanate, the results therefore should be regarded as tentative.