Monthly Notifiable Disease Surveillance Report - Mar 2013

Friday 20th September 2019


Key notifiable disease trends

Cryptosporidiosis: 187 cases of cryptosporidiosis were notified in March 2013 compared to 47 cases notified during the same month of the previous year (Figure 1). The cases ranged in age from eight months to 72 years, with the highest numbers of cases in the 1-4 years (56 cases) followed by those in the 5-9 years (31 cases), and 30-39 years (29 cases) age groups. The highest numbers of cases were reported in Hawke’s Bay (57 cases), Waikato (35 cases), and Capital and Coast (22 cases) DHBs. Among the cases where risk factor information was recorded, 57.9% (77/133) had recreational contact with water, 56.9% (70/123) had contact with other symptomatic people, 51.6% (63/122) had contact with faecal matter, 51.4% (72/140) ) attended school, pre-school or childcare, and 44.8% (52/116) had consumed food from a food premises.  Nineteen Cryptosporidium outbreaks were reported in March, including 11 finalised outbreaks (30 cases) and eight interim outbreaks (case numbers yet to be determined).

Cronobacter species: One confirmed case of cronobacter species was notified in March 2013. The case was a male in the 30-39 year age group from MidCentral DHB.

Hydatid:  One case of hydatid disease was notified in March 2013.  The case was a male in the 60-69 year age group from Canterbury DHB and has had hydatid since childhood.

Measles: One confirmed case of measles was notified in March 2013. The case was a male in the 10-14 year age group from Capital and Coast DHB. The case travelled overseas during the incubation period.

Meningococcal disease: Seven cases of meningococcal disease were notified in March 2013 compared to three cases notified in the same month of the previous year. Cases occurred in the following age groups: 15-19 years (2 cases), and 1-4 years, 5-9 years, 30-39 years, 40-49 years and 60-69 years (1 case each). Cases were from the following DHBs: Canterbury (3 cases), and Northland, Waikato, Taranaki and Hutt Valley (1 case each). Six cases were hospitalised and one death was reported. 71.2% (5/7) of cases were laboratory confirmed and the strain type was determined for four cases: group C (2 cases including 1 C:P1.5-1,10-8), group B:P1.7-2,4, and group Y (1 case each).

Q fever: One case of Q fever was notified in March 2013 from Southern DHB. The case has since been made
‘not a case’ as laboratory criteria were not met.

Rheumatic fever: Based on the earliest date available, 19 cases of rheumatic fever (18 initial attack, 1 recurrent attack) were notified in March 2013, compared to 11 cases during the same month of the previous year (Figure 2). Of the 17 cases with hospitalisation status recorded, all were hospitalised. All of the cases were notified from the North Island with the highest number of cases notified from Counties Manukau DHB (10 cases). All cases were reported among Māori (10 cases) and Pacific Peoples (9 cases) ethnic groups. The majority of cases (12 cases) were aged between 5 and 14 years.

Rickettsial disease:  One confirmed case of rickettsial disease was notified in March 2013. The case was a female in the 50-59 years age group from Northland DHB and was in Australia during the incubation period.

Taeniasis: One confirmed case of taeniasis was notified in March 2013. The case was a female in the 20-29 years age group from Capital and Coast DHB and was in Ethiopia during the incubation period.

Tuberculosis disease: 26 cases of tuberculosis disease were notified in March 2013, all of which were cases of new tuberculosis disease. This compares with 15 cases notified in the same month of the previous year. Fourteen cases were laboratory confirmed. The highest numbers of cases were reported in the Auckland region (11 cases). The cases ranged in age from four months to 89 years, with the highest numbers of cases in the 70 years and over (6 cases) followed by those in the 60-69 years (5 cases), and 30-39 years and 40-49 years (4 cases each) age groups. Of the 18 cases for which place of birth was recorded, 12 (66.7%) were born outside New Zealand. The Mycobacterium species was recorded in 78.6% (11/14) of the laboratory confirmed cases, all due to M. tuberculosis.

VTEC/STEC infection: 31 cases of VTEC/STEC infection were notified in March 2013. One case has since been made ‘not a case’. This compares with 16 cases notified in the same month of the previous year. Cases were from the following DHBs: Waikato (13 cases), Waitemata (6 cases), Counties Manukau (5 cases), Canterbury (2 cases), and Northland, Auckland, Nelson Marlborough and South Canterbury (1 case each). The highest number of cases occurred in the 1-4 years and 20-29 years age groups (6 cases each). Thirteen cases were hospitalised of which three had haemolytic uraemic syndrome. The serotype/organism was identified by the Enteric Reference Laboratory for 26 cases, of which 25 were Escherichia coli O157:H7. The remaining case was E. coli O26:H11. Among the cases for which risk factor was recorded, 75.0% (9/12) had contact with animals, 50.0% (5/10) had consumed water from a non-habitual supply and 46.2% (6/13) had recreational contact with water.

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Report:

Monthly Notifiable Disease Surveillance Report - Mar 2013

Tables:

Monthly National Totals - Mar 2013

Monthly DHB Totals - Mar 2013

Monthly Rolling Totals - Mar 2013

 

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Monthly Notifiable Disease Surveillance Report - Mar 2013

Tables:

Monthly National Totals - Mar 2013

Monthly DHB Totals - Mar 2013

Monthly Rolling Totals - Mar 2013

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