Annual Summary of Outbreaks in New Zealand, 2016

Wednesday 24th October 2018


Annual Summary of Outbreaks in New Zealand, 2016

There were 610 outbreaks reported during 2016, involving 11,030 cases. A total of 194 cases required hospitalisation and 10 cases died.

The highest number of outbreaks was reported by Auckland Regional Public Health Service.

The causal agent (pathogen, toxin or chemical) was identified in 63.6% of outbreaks. 

Enteric agents were implicated in 91.8% of outbreaks. The most commonly identified pathogen was norovirus, followed by Giardia spp., and Cryptosporidium spp. The most commonly implicated non-enteric agents were influenza and influenza-like illness.

A large localised outbreak of Campylobacter associated with a town water supply in Havelock North occurred, involving 964 notified cases and three deaths. This was the largest outbreak recorded in EpiSurv since recording began in 1997.

The most common settings where exposure to or transmission of causal agents occurred were long-term care facilities and childcare centres.

Person-to-person transmission was reported for 82.3% of outbreaks in 2014. Multiple modes of transmission were implicated in 16.1% of outbreaks.

The most commonly implicated pathogens in foodborne outbreaks were norovirus, Salmonella and Campylobacter.

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Annual Summary of Outbreaks in New Zealand, 2016

 

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Annual Summary of Outbreaks in New Zealand, 2016

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