Monthly Surveillance Report - Jul 2008

Friday 20th September 2019


Key notifiable disease trends

  • Brucellosis: Three cases of brucellosis, two confirmed and one under investigation, were notified in July 2008 all from Auckland DHB. One of the cases had been to South America and had consumed unpasteurised milk or milk products while another case home kills animals. No risk factor information is currently recorded for the remaining case.
  • Campylobacteriosis: The number of campylobacter notifications has increased from 274 in June 2008 to 388 in July 2008 (Figure 1). For the 12 month period ending 31 July 2008 the national rate was 190.1 per 100 000 population, which was lower than the same 12 month period last year (349.7 per 100 000 population).
  • Dengue fever: 14 cases of dengue fever were notified in July 2008 compared to two notified cases at the same month in the previous year. The cases were from Auckland (5), Waitemata (4), Counties Manukau (2), Northland (1), Hawke’s Bay (1), and Capital and Coast (1) DHBs. Two cases were hospitalised. Overseas travel was recorded for all cases. The countries visited during the incubation period were Samoa (6), Tonga (3), Fiji (2), Indonesia (1), Thailand (1), and Vanuatu (1).
  • Hepatitis A: 20 cases of Hepatitis A were notified in July 2008 compared to zero notified cases in the same month of the previous year (Figure 2). The cases were reported from MidCentral (11), Waitemata (3), Northland (2), Auckland (1), Counties Manukau (1), Capital and Coast (1), and Canterbury (1) DHBs. The 11 MidCentral cases and one Northland case were part of an outbreak linked to a child care centre in Palmerston North. Four of the 20 cases had been overseas during the incubation period. The countries visited were Fiji (1), India (1), Korea (1), and Samoa (1).
  • Leptospirosis: 10 cases of leptospirosis were notified in July 2008 compared to one notified case at the same month in the previous year. The cases were from Tairawhiti (3), Waitemata (2), Counties Manukau (2), Lakes (1), Whanganui (1), and Canterbury (1) DHBs. Two cases were hospitalised. The Tairawhiti cases were part of an outbreak linked to the meat processing industry. Three other cases had risk factor information: one was a farmer, one had exposure to rats, and another was in Samoa during the incubation period.
  • Meningococcal disease: Based on the earliest date available1 , 16 cases of meningococcal disease were notified during July 2008, all of which were laboratory-confirmed. In comparison, 12 cases were notified the previous month, June 2008, and 23 cases were notified during the same month last year, July 2007. For the 12 month period ending 31 July 2008, the national rate was 2.6 per 100 000 and Hawke’s Bay DHB recorded the highest incidence rate of 7.2 per 100 000 population (11 cases) followed by Tairawhiti DHB (6.5 per 100 000, 3 cases). The highest age-specific incidence rate was in infants aged less than one year (29.1 per 100 000 population, 18 cases), followed by those in the 1-4 years age group (12.1 per 100 000 population, 28 cases), and those in the 5-9 years age group (5.5 per 100 000 population, 16 cases).
  • Mumps: Seven cases of mumps were notified in July 2008 compared to three notified cases in the same month of the previous year. The cases were reported from Counties Manukau (2), Northland (1), Auckland (1), Lakes (1), Capital and Coast (1), and Canterbury (1) DHBs. Three cases were laboratory confirmed aged 1-4 years (1), 5-9 years (1), and 30-39 years (1), none were immunised. Of the remaining four non-laboratory confirmed cases, one was recorded as immunised receiving two doses of MMR.
  • Rickettsial disease: Three cases of rickettsial disease, two confirmed and one under investigation were notified in July 2008. The cases were from Waikato (2) and Auckland (1) DHBs. One case had been to North Africa during the incubation period. The remaining two cases had no overseas travel and the possible source of infection was contact with rats.
  • Taeniasis: One case of taeniasis was notified in July 2008. The case was from Capital and Coast DHB and had been in Ethiopia during the incubation period.
  • Typhoid fever: Six cases of typhoid fever were notified in July 2008 compared to three notified cases in the same month of the previous year. The cases were from Counties Manukau (5), and Auckland (1) DHBs. Four cases were hospitalised. The species involved was identified for five of the six cases as: Salmonella Typhi phage type E1a (2), S. Typhi E7 variant (2), and S. Typhi phage type Untypable (1). Three of the cases were part of a household outbreak. Information on overseas travel was recorded for all cases, of which two had been overseas. The countries visited were India (1), and Samoa (1). The remaining four cases had no overseas travel.


1 The ‘earliest’ date refers to the earliest recorded date for the case (onset or hospitalisation date rather than report date, if available). ‘Earliest’ date, as opposed to ‘report date’ alone, is used throughout the analysis of meningococcal disease notification data.

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Report:

Monthly Surveillance Report - Jul 2008

Tables:

Monthly National Totals - Jul 2008

Monthly DHB Totals - Jul 2008

Monthly Rolling Totals - Jul 2008

 

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Monthly Surveillance Report - Jul 2008

Tables:

Monthly National Totals - Jul 2008

Monthly DHB Totals - Jul 2008

Monthly Rolling Totals - Jul 2008

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