Monthly Surveillance Report - Jul 2005

Saturday 21st September 2019


Key Notifiable Disease Trends

  • Cryptosporidiosis: a total of 26 cases of cryptosporidiosis was notified during July 2005 compared to 12 cases notified at the same time last year. Lakes and Nelson Marlborough DHBs reported the highest number of cases (4 each).
  • Dengue: four cases of dengue fever were reported in July, bringing the year to date total to nine.  All four cases were confirmed by IgM serology. Three cases travelled to Singapore and one case to Malaysia. 
  • Influenza: during July (weeks 26 – 30), 1428 consultations for influenza-like illness were reported from 75 general practices (on average) in 21 out of 24 health districts.  The average weekly consultation rate for July was 97.0 per 100 000 patient population, compared to a rate of 25.6 per 100 000 patient population during the same month last year.  Hutt had the highest consultation rate (242.4 per 100 000), followed by Eastern Bay of Plenty (224.3 per 100 000).
  • Legionellosis: 13 cases of legionellosis were notified in July, compare to four cases in July 2004. Eight cases were reported from Canterbury, two from Auckland, and one each from Waikato, MidCentral, and West Coast DHBs. The cases range in age from 31 to 91 years. The species involved was identified for 11 of the 13 cases as Legionella pneumophila serogroup 1. The reason for the increase in legionellosis incidence in Canterbury is still being investigated.
  • Meningococcal disease: based on earliest date available, 36 cases of meningococcal disease were notified during July 2005, of which 31 (86.1%) were laboratory-confirmed. In comparison, 26 cases were notified the previous month, and 35 cases were notified during July 2004. Counties Manukau DHB recorded the highest number of cases (41) with a current rate of 10.9 per 100 000 population.
  • Pertussis: 158 cases of pertussis were notified in July 2005, of whom 53 (33.5%) were laboratory confirmed. Pertussis numbers have decreased from the peak in November 2004 with 613 cases. Canterbury DHB had the highest number of cases (63).
  • Rickettsial disease: one laboratory-confirmed case of rickettsial disease was notified in July from Auckland DHB. The case was a male in the 50-59 years age group with no history of recent overseas travel but had occupational exposure. The investigation is continuing.
  • Salmonellosis: 65 salmonellosis cases were notified in July 2005. Waitemata DHB had the highest number of cases (13). The ESR Enteric Reference Laboratory received 71 isolates in July. The predominant types identified were Salmonella Typhimurium phage type 160 (10 isolates) and S. Typhimurium phage type 193 (7 isolates). Six of the seven STM 193 isolates were linked to outbreaks in Auckland maraes. Currently, an outbreak investigation is being conducted to establish the source.

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Report:

Monthly Surveillance Report - Jul 2005

Tables:

Monthly National Totals - Jul 2005

Monthly DHB Totals - Jul 2005

Monthly Rolling totals - Jul 2005

 

DOWNLOADS

Monthly Surveillance Report - Jul 2005

Tables:

Monthly National Totals - Jul 2005

Monthly DHB Totals - Jul 2005

Monthly Rolling totals - Jul 2005

Ph: +64 4 914 0700 Fax: +64 4 914 0770 Email: survqueries@esr.cri.nz