Notifiable and Other Diseases in NZ: Annual Report 2011

Saturday 20th January 2018


Summary of notifiable and other disease surveillance trends for 2011

In 2011, 16 294 cases of notifiable diseases were reported through EpiSurv, the National Notifiable Disease Database. This was lower than 2010, and the second lowest count in the last 15 years.

Between 2010 and 2011 there were some significant changes in the number of cases reported for individual diseases. There was a statistically significant increase in reported cases of measles, pertussis, acute gastroenteritis, and yersiniosis. Conversely, there were statistically significant decreases in reported cases of hepatitis A, cryptosporidiosis, campylobacteriosis and salmonellosis.

In 2011, there were 580 outbreaks reported involving 7893 cases. This represented a decrease in the number of outbreaks but an increase in the number of cases associated with outbreaks compared with 2010 figures. The most common pathogen implicated was norovirus, followed by Giardia spp. The most common settings linked to an outbreak were private homes and long-term care facilities.

The average weekly influenza consultation rate was 37.1 per 100 000 patient population in 2011, which was lower than the 2010 rate. The peak weekly consultation rate of 66.1 per 100 000 patient population in July 2011 was lower than the peaks in 2009 and 2010.

In 2011 Chlamydia trachomatis infection was again the most commonly diagnosed sexually transmitted infection (STI) in New Zealand, and it had over five-times the rate of the most commonly reported notifiable disease, campylobacteriosis.

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Report:

Notifiable and Other Diseases in New Zealand: Annual Report 2011

Tables:

Notifiable and Other Diseases in New Zealand: Annual Report 2011 - Selected Tables

 

DOWNLOADS

Notifiable and Other Diseases in New Zealand: Annual Report 2011

Tables:

Notifiable and Other Diseases in New Zealand: Annual Report 2011 - Selected Tables

Ph: +64 4 914 0700
Fax: +64 4 914 0770
Email: survqueries@esr.cri.nz