Monthly Surveillance Report - Jan 2007

Thursday 19th September 2019


Key Notifible Disease Trends

  • Chemical poisoning from the environment: two cases were notified from chemical poisoning in January 2007. The first case is confirmed, with asbestos as the suspected source. The second case is currently under investigation with no risk factors recorded.
  • Creutzfeldt-Jacob disease (CJD): one case of CJD, confirmed through MRI scan was notified in January 2007. The case was a male aged 50-59 years from Waitemata DHB. No cases of variant CJD, the form linked with bovine spongiform encephalopathy, have ever been identified in New Zealand.
  • Cysticercosis: one probable case of cysticercosis was notified in January 2007 based on a suggestive CT scan of the head. The case was in the 10-14 years age group and had a history of travel to India.
  • Dengue: 10 cases of dengue fever were notified in January 2007 compared to one notified case at the same month in the previous year (Figure 1). The cases were from Counties Manukau (8), Waitemata (1), and West Coast (1) DHBs. One case was hospitalised. Overseas travel was recorded for nine of the 10 cases. The countries visited during the incubation period were the Cook Islands (7), Fiji (1), and Samoa (1).
  • Legionellosis:  11 cases of legionellosis were notified in January 2007 compared to three notified cases at the same month in the previous year. The cases were from Tairawhiti (5), Waitemata (2), Canterbury (2), Northland (1), and Counties Manukau (1) DHBs.   Three cases were hospitalised. The cases from Tairawhiti were part of an outbreak and all worked together at a plant nursery. Environmental tests indicated soil may contain the organism although testing is ongoing. Internationally, there have been a number of cases reported in Europe with a common history of travel to the holiday resort of Phuket, Thailand. A hotel has been identified as a common exposure. None of the cases notified in New Zealand in January have been linked to this outbreak.
  • Meningococcal disease: based on the earliest date available , seven cases of meningococcal disease were notified during January 2007, of which six (85.7%) were laboratory-confirmed.  In comparison, 15 cases were notified the previous month, December 2006, and nine cases were notified during the same month last year, January 2006. For the 12 month period ending 31 January 2007, Waikato DHB recorded the highest incidence rate of 8.5 per 100 000 population (27 cases). The highest age-specific incidence rate was in infants aged less than one year (58.6 per 100 000 population, 32 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 (11.7 per 100 000 population, 31 cases).
  • Mumps: five cases of mumps were notified in January 2007 compared to two notified cases in the same month of the previous year. The cases were reported from Auckland (1), Hawke’s Bay (1), Hutt (1), Capital and Coast (1), and Otago (1) DHBs. The cases were in the following age groups: 1-4 years (3), 10-14 years (1), and 30-39 years (1). Two cases were reported as being immunised (the first case received one dose; the second case’s number of doses is unknown).
  • Tetanus: one probable case of tetanus was notified in January 2007. The case was in the 70+ years age group and was not immunised. The suspected source is a leg wound from the garden.
  • Typhoid fever: nine cases of typhoid fever were notified in January 2007 compared to six notified cases in the same month of the previous year (Figure 2). The cases were from Counties Manukau (3), Waitemata (2), and one each from Auckland, MidCentral, Capital and Coast, and Nelson Marlborough DHBs. Seven cases were hospitalised. The species involved was identified for eight of the nine cases as: Salmonella Typhi phage type E1a (6), S. Typhi E7 variant (1), and S. Typhi phage type Untypable (1). Information on overseas travel was recorded for all cases, of which six had been overseas. The countries visited were India (3), Western Samoa (2), and Pakistan (1).  The remaining three cases had no overseas travel.

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Report:

Monthly Surveillance Report - Jan 2007

Tables:

Monthly National Totals - Jan 2007

Monthly DHB Totals - Jan 2007

Monthly Rolling Totals - Jan 2007

 

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Monthly Surveillance Report - Jan 2007

Tables:

Monthly National Totals - Jan 2007

Monthly DHB Totals - Jan 2007

Monthly Rolling Totals - Jan 2007

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