Monthly Surveillance Report - Dec 2007

Saturday 21st September 2019


Key notifiable disease trends

  • Hydatid disease: three cases of hydatid disease were notified in December 2007, bringing the year to date total to six. The cases were from Counties Manukau (2), and Waitemata (1) DHBs.  One case had been in India and another in Iraq during the incubation period (both from farming families). The remaining case had been a farmer in New Zealand, more than 60 years ago.
  • Lead absorption: twelve cases of lead absorption were notified in December 2007 compared to two notified cases in the same month of the previous year. The cases were from Canterbury (3), Otago (3), Waitemata (2), Auckland (1), Waikato (1), Bay of Plenty (1), and Hutt (1) DHBs. The cases were aged between 25 years and 59 years, with the highest number of cases in the 50-59 years age group (5).  Risk factor information was recorded for 11 cases. Seven cases were recorded as currently working or having worked in high risk occupations. The recorded occupations were: radiator fitter/turner (2 cases), painter (2 cases), carpenter (replaces ceilings), a general worker (sandblasting equipments), and plastic company worker (chemical sprays). Three cases were recorded as living in or regularly visiting a pre-1970 constructed building. All of these buildings were recorded as currently having paint stripped. One case’s hobby was making home ammunition, and another was a regular shooter.
  • Leptospirosis: nine cases of leptospirosis were notified in December 2007 compared to two notified cases in the same month of the previous year. The cases were from Hawke’s Bay (5), Canterbury (2), Nelson Marlborough (1), and Southland (1) DHBs. Occupation was recorded for eight cases: meat process worker/slaughterer (6), and farmer (2).
  • Listeriosis: two cases of listeriosis, of which one was perinatal, were notified in December 2007, bringing the year to date total to 25. The non-perinatal case was aged 70+ years with no underlying illness but was overseas during the incubation period. The perinatal case was aged between 20-29 years, and occurred at 36 weeks of gestation. The infant survived. No source was identified.
  • Meningococcal disease: based on the earliest date available , twelve cases of meningococcal disease were notified during December 2007, 11 (91.7%) were laboratory-confirmed. In comparison, five cases were notified the previous month, November 2007, and 15 cases were notified during the same month last year, December 2006. For the 12 month period ending 31 December 2007, Tairawhiti DHB recorded the highest incidence rate of 9.0 per 100,000 population (4 cases), followed by Hawke’s Bay (6.6 per 100,000, 10 cases), and Hutt (4.3 per 100,000, 6 cases). The highest age-specific incidence rate was in infants aged less than one year (33.3 per 100,000 population, 19 cases), followed by those in the 1-4 years age group (13.3 per 100,000 population, 30 cases), and those in the 15-19 years age group (3.8 per 100,000 population, 12 cases).
  • Measles: eight measles cases were notified in December 2007, compared to two notified cases in the same month of the previous year (Figure 1). The cases were reported from Waitemata (5), Taranaki (1), West Coast (1), and Canterbury (1) DHBs. The cases were in the following age groups: < 1 year (2), 20-29 years (2), 1-4 years (1), 5-9 years (1), 15-19 years (1), and 30-39 years (1). Two cases were laboratory confirmed. Laboratory results are awaited for two other cases. One probable case aged 1-4 years was reported as being immunised receiving one dose of MMR. Three cases were not immunised, the immunisation status for the remaining four cases was not recorded.
  • Mumps: fourteen cases of mumps were notified in December 2007 compared to seven notified cases in the same month of the previous year (Figure 2). The cases were reported from Waitemata (4), Auckland (4), Counties Manukau (4), Bay of Plenty (1), and MidCentral (1) DHBs. The cases were in the following age groups: 1-4 years (3), 5-9 years (3), 40-49 years (3), 10-14 years (2), <1 year (1), 20-29 years (1), and 50-59 years (1). Seven cases were laboratory confirmed. Laboratory results are awaited for one case. Three cases were reported as immunised of which two received two doses of MMR while the remaining probable case (age four years) received one dose. Five cases were not immunised, the immunisation status of the remaining six cases was not recorded.
  • Salmonellosis: 120 cases of salmonellosis were notified in December 2007 compared to 100 notified cases in the same month of the previous year. The highest numbers of cases were reported from Bay of Plenty (25), Waitemata, Auckland and Canterbury DHBs (10 cases each). Eight cases were hospitalised. The serotype involved was identified for 116 of the cases. The dominant serotypes were: Salmonella Chester (35), S. Typhimurium phage type 160 (14 cases), and S. Infantis (8).

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Report:

Monthly Surveillance Report - Dec 2007

Tables:

Monthly National Totals - Dec 2007

Monthly DHB Totals - Dec 2007

Monthly Rolling Totals - Dec 2007

 

DOWNLOADS

Monthly Surveillance Report - Dec 2007

Tables:

Monthly National Totals - Dec 2007

Monthly DHB Totals - Dec 2007

Monthly Rolling Totals - Dec 2007

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