Monthly Surveillance Report - Jul 2006

Monday 23rd September 2019


Key Notifiable Disease Trends

  • Campylobacter: 1055 campylobacter cases were notified in July 2006 compared to 914 cases notified in the same month of the previous year. (Figure 1). Over 39% of the cases in July were reported from the Auckland region. Overall, 32 cases were hospitalised. During the incubation period, 79 (7.5%) consumed food at a food premise (133/1055 completed data field), 16 (1.5%) consumed untreated water (116/1055 completed data field), 8 (0.8%) had faecal contact (132/1055 completed data field), 6 (0.6%) had contact with a sick animal (124/1055 completed data field), and 3 (0.3%) had contact with a case (193/1055 completed data field), and 2 (0.2%) had recreational water contact (128/1055 completed data field). For the 12 month period ending 31 July 2006, South Canterbury DHB recorded the highest annual incidence rate of 642.3 per 100 000 population (339 cases) compared to the national rate of 436.4 per 100 000 population.
  • Gastroenteritis: 62 gastroenteritis cases were notified in July 2006 compared to 36 cases notified in the same month of the previous year. Twenty-three cases were notified from MidCentral DHB.  Of these, 21 cases were associated with a norovirus outbreak in a rest home.  Three of the cases notified from Capital and Coast DHB were also linked to a norovirus outbreak at a restaurant/café.
  • Haemophilus influenzae type b disease (Hib): two cases of Haemophilus influenzae type b disease were notified in July 2006 bringing the year to date total to 11. Both cases were from Waitemata DHB within the same household. The cases were aged less than five years, and were not laboratory-confirmed. One of the cases had been vaccinated.
  • Influenza: during July 2006 (weeks 27 – 30), 1154 consultations for influenza-like illness were reported from 81 general practices (on average) in 23 out of 24 health districts.  The average weekly consultation rate for July was 81.8 per 100 000 patient population, compared to a rate of 97.0 per 100 000 patient population during the same month last year (Figure 2). Rotorua had the highest consultation rate (270.7 per 100 000), followed by Hawke’s Bay (245.8 per 100 000). A total of 288 swabs were received for testing during July. Of these, 119 influenza viruses were isolated, 89 as A/New York/55/2004 (H3N2) - like, and 30 as influenza A (yet to be sub-typed).  In addition, 192 influenza viruses were reported from the laboratory-based (non-sentinel) surveillance, 113 as influenza A (yet to be sub-typed), 78 as A/New York/55/2004 (H3N2) - like, and one as A/New Caledonia/20/1999 (H1N1) - like.
  • Meningococcal disease: based on the earliest date available , 26 cases of meningococcal disease were notified during July 2006, all were laboratory-confirmed, and four were fatal. In comparison, 15 cases were notified the previous month, June 2006, and 38 cases were notified during the same month last year July 2005. For the 12 month period ending 31 July 2006, Waikato DHB recorded the highest incidence rate of 8.8 per 100 000 population (28 cases). The highest age-specific incidence rate was in infants aged less than one year (56.7 per 100 000 population, 31 cases), followed by those in the 15-19 years age group (12.1 per 100 000 population, 32 cases), and those in the 1-4 years age group (10.2 per 100 000 population, 22 cases).
  • Pertussis: 104 pertussis cases were notified in July 2006, of whom 12 (11.5%) were laboratory-confirmed. The number of pertussis notifications per month have decreased from the peak in November 2004 when 613 cases were notified. Of the 104 cases notified in July 2006, four were reported as being hospitalised. Waikato DHB had the highest number of cases (39). For the 12 month period ending 31 July 2006, Canterbury DHB had the highest incidence rate of 153.6 per 100 000 population (656 cases), compared to the national rate of 48.3 per 100 000 population. Over this period the incidence rate by age group was highest amongst infants aged less than one year (118.9 per 100 000 population). This was followed by children in the 10-14 years age group (80.1 per 100 000 population) and the 5-9 years age group (67.8 per 100 000 population).

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Report:

Monthly Surveillance Report - Jul 2006

Tables:

Monthly National Totals - Jul 2006

Monthly DHB Totals - Jul 2006

Monthly Rolling Totals - Jul 2006

 

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Monthly Surveillance Report - Jul 2006

Tables:

Monthly National Totals - Jul 2006

Monthly DHB Totals - Jul 2006

Monthly Rolling Totals - Jul 2006

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