Notifiable and Other Diseases in NZ: 2009 Annual Surveillance Report

Thursday 24th April 2014


Summary of notifiable and other disease surveillance trends for 2009

In 2009, 19 856 cases of notifiable diseases were reported through EpiSurv, the National Notifiable Disease Database. This was higher than the previous two years, but lower than any of the seven years prior to 2007.

Between 2008 and 2009 there were some significant changes in the number of cases reported for individual diseases. There was a statistically significant increase in reported cases of campylobacteriosis, cryptosporidiosis, measles, and pertussis. Conversely, there were statistically significant decreases in reported cases of acquired immune deficiency syndrome (AIDS), hepatitis A, leptospirosis, salmonellosis, and yersiniosis.

There were 638 reported outbreaks involving 10 734 cases in 2009. This represented an increase in the number of outbreaks and cases compared with 2008 figures. The most common pathogen implicated was norovirus, followed by Giardia spp. The most common setting linked to an outbreak was rest/retirement homes, followed by private homes.

The average weekly influenza consultation rate was 77.9 per 100 000 patient population. This was the third highest rate since 1997. The peak weekly consultation rate of 284.0 per 100 000 practice patient population in July 2009 was the highest recorded by the sentinel surveillance system since 1997.

In 2009, Chlamydia trachomatis infection was again the most commonly diagnosed sexually transmitted infection (STI) in New Zealand. The number of syphilis cases reported by sexual health clinics (SHCs) increased between 2008 and 2009.

Note: Click on the document links below to open. These documents are in PDF format. You will need to download the free Adobe Acrobat Reader to view them.

Report:

Notifiable and Other Diseases in NZ: 2009 Annual Surveillance Report

Tables:

Notifiable and Other Diseases in NZ: 2009 Annual Surveillance Report - Selected Tables

 

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Notifiable and Other Diseases in NZ: 2009 Annual Surveillance Report

Tables:

Notifiable and Other Diseases in NZ: 2009 Annual Surveillance Report - Selected Tables

Email us at survqueries@esr.cri.nz to be notified when reports are published. Please specify the reports you are interested in:

- NZ Public Health Surveillance Report
- Monthly Surveillance Report
- Annual Surveillance Summary
- Annual Summary of Outbreaks
- Annual STI Report
- Quarterly STI Clinic Report
- Quarterly STI Lab Report

For the Weekly Influenza Update report please check here each Thursday.

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