Monthly Surveillance Report - Oct 2006

Monday 23rd September 2019


Key Notifiable Disease Trends

  • Dengue: three cases of dengue fever were notified in October 2006 bringing the year to date total to 15. Two cases were from Capital and Coast DHB and one was from Waitemata DHB. One case was hospitalised. All cases were overseas during the incubation period. One case had been to Raratonga, another to Thailand, and the third case had been to Thailand, India, and Bangladesh.
  • Listeriosis: two cases of listeriosis were notified in October 2006 bringing the year to date total to 14. The cases were reported from Waitemata and Southland DHBs. Both cases were immunosuppressed secondary to chronic illness.  No source was identified for either case.
  • Meningococcal disease: based on the earliest date available , 12 cases of meningococcal disease were notified during October 2006, of which 10 (83.3%) were laboratory-confirmed, and none were fatal.  In comparison, 12 cases were notified the previous month, September 2006, and 15 cases were notified during the same month last year, October 2005. For the 12 month period ending 31 October 2006, Waikato DHB recorded the highest incidence rate of 9.1 per 100 000 population (29 cases). The highest age-specific incidence rate was in infants aged less than one year (54.9 per 100 000 population, 30 cases), followed by those in the 1-4 years age group (13.0 per 100 000 population, 28 cases), and those in the 15-19 years age group (10.2 per 100 000 population, 27 cases).
  • Pertussis: 63 pertussis cases were notified in October 2006, of whom 13 (20.6%) were laboratory-confirmed. The number of pertussis notifications per month has decreased from the peak in November 2004 when 613 cases were notified (Figure 1). Of the 63 cases notified in October 2006, three were reported as being hospitalised. Waikato DHB had the highest number of cases (15). For the 12 month period ending 31 October 2006, Canterbury DHB had the highest incidence rate of 103.7 per 100 000 population (443 cases), compared to the national rate of 37.8 per 100 000 population. Over this period the incidence rate by age group was highest amongst infants aged less than one year (111.6 per 100 000 population). This was followed by those in the 60-69 years age group (49.2 per 100 000) and the 10-14 years age group (47.1 per 100 000 population). one rickettsial disease case, still under investigation, was notified in October 2006 from Nelson Marlborough DHB. The case suffered tick bites whilst in Western Australia.
  • Rubella: two rubella cases were notified in October 2006. One case is a probable and the other under investigation. Both were from Canterbury DHB  in the 1-4 years age group. The immunisation status was unknown for both cases.
  • Typhoid fever: two cases were notified in October 2006. The cases were from Counties Manukau and Waikato DHBs. The species involved were: Salmonella Typhi phage type E1a and S. Typhi phage type untypable. Both cases had no overseas travel. One of the cases worked in a laboratory and transmission was work acquired.
  • Yersiniosis: 55 yersiniosis cases were notified in October 2006 compared to 44 cases notified in the same month of the previous year (Figure 2).  Three cases were reported as being hospitalised. Canterbury DHB had the highest number of cases (13), followed by Capital and Coast (7) DHB. Overseas travel information was recorded for 23/55 (41.8%) cases, of which one had been overseas (Tonga).

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Report:

Monthly Surveillance Report - Oct 2006

Tables:

Monthly National Totals - Oct 2006

Monthly DHB Totals - Oct 2006

Monthly Rolling Totals - Oct 2006

 

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Monthly Surveillance Report - Oct 2006

Tables:

Monthly National Totals - Oct 2006

Monthly DHB Totals - Oct 2006

Monthly Rolling Totals - Oct 2006

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