Antimicrobial Resistance in New Zealand

These are approximate antimicrobial resistance rates in NZ currently:

9% of all Staph aureus isolates are resistant to methicillin (MRSA).

1% of all E.coli isolates are Extended Spectrum Beta Lactamase producers (ESBLs).

10% of all Klebsiella pneumoniae isolates are ESBLs.

<1% of all enterococci are vancomycin resistant (VRE).

There are just a handful of metallobetalactamases, mostly in people who have travelled abroad.


By international standards I think these are very low rates. How do they compare with the country you live in?

It would be nice to think that this was due to the great antimicrobial stewardship, fantastic infection control and well regulated antimicrobial licensing that we have in NZ! Off course these all play a part, but in actual fact the more likely reasons are due to NZ’s geographical isolation and sparse population, which are inherent advantages.

Let’s hope that the rates stay this low…


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