Vibrio Isolates 2021

Friday 2nd December 2022


Vibrio cholerae

Only non-toxigenic Vibrio cholerae were detected during a unique year in that our borders were closed for the entire period.

Vibrio parahaemolyticus

This is the third year that NZ has experienced an outbreak of Vibrio parahaemolyticus (VP) associated with the consumption of locally grown mussels. The 2021 outbreak strain was 7-gene sequence type ST50 – as was the 2020 strain.

However, unlike other years we also experienced a summer outbreak associated with seafood that was recreationally collected from around our coastline. Again ST50 predominated but other sequence types were also evident.

All VP cases isolates were analysed via whole genome sequencing with the exception of two which were not associated with gastrointestinal infection – one was from an ear swab and one from a wound infection at the site of an injury sustained on an oyster shell.

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Vibrio Isolates 2021



Vibrio Isolates 2021

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