Monthly Notifiable Disease Surveillance Report - Mar 2018

Sunday 19th August 2018


Key notifiable disease trends

Cryptosporidiosis: 206 notifications in March 2018, a significant increase from the same month in 2017 (49 cases). Almost half the cases were reported from the Auckland region (102 cases, 49.5%). No outbreaks were reported.

Dengue fever: 40 notifications in March 2018, a significant increase from the same month in 2017 (21 cases) (Figure 1). The majority of cases had travelled to Tonga, Fiji and Samoa where there are currently outbreaks of dengue fever (Denv-2).

Invasive pneumococcal disease: 46 notifications in March 2018, a significant increase from the same month in 2017 (21 cases). The highest number of cases were reported from the Auckland region (14 cases, 30.4%). Adults aged 70 years and over (13 cases) and 50–59 years (10 cases) had the highest number of cases. Thirty-one cases were hospitalised and one death was reported.

Mumps: 98 notifications in March 2018, a significant increase from the same month in 2017 (22 cases) (Figure 2). The majority of cases were aged 20–29 years (61 cases, 62.2%) and had unknown vaccination status. The highest number of cases were reported from the Auckland region (38 cases, 38.8%), Southern (30 cases, 30.6%), and Lakes (20 cases, 20.4%) where there are current outbreaks. 

Pertussis: 310 notifications in March 2018, a significant increase from the same month in 2017 (109 cases) (Figure 3). From 1 January–31 March 2018, the highest rates were in the <1 year (105.7 per 100,000) and 1–4 years (74.2) age groups. A national outbreak is ongoing. 

STEC: 127 notifications in March 2018, a significant increase from the same month in 2017 (85 cases) (Figure 4). This increase has been ongoing since early 2016 and is partly due to changes in laboratory testing practices, with increasingly sensitive assays used for the detection of STEC.

Yersiniosis: 118 notifications in March 2018, a significant increase from the same month in 2017 (82 cases). This increase is partly due to changes in laboratory testing practices since mid-2017, with increasingly sensitive assays used for the detection of Yersinia, although this does not account for all of the increase.

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Report:

Monthly Notifiable Disease Surveillance Report - Mar 2018

Tables:

Monthly National Totals - March 2018

Monthly DHB Totals - March 2018

Monthly Rolling Totals - March 2018

Monthly DHB Rolling Totals - March 2018

 

DOWNLOADS

Monthly Notifiable Disease Surveillance Report - Mar 2018

Tables:

Monthly National Totals - March 2018

Monthly DHB Totals - March 2018

Monthly Rolling Totals - March 2018

Monthly DHB Rolling Totals - March 2018

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