Monthly Notifiable Disease Surveillance Report - Mar 2011

Saturday 21st September 2019


Key notifiable disease trends

  • Arboviral disease: One case of Chikungunya fever was notified during March.  The case was a male aged 60-69 years from Taranaki DHB and had been in Indonesia during the incubation period. The case was laboratory-confirmed and had been living in a village in East Java where other cases of infection were reported.
  • Brucellosis: One case of brucellosis was notified in March 2011 from Waikato DHB. However, upon further investigation the case was found not to be a case.
  • Cryptosporidiosis: 29 cases of cryptosporidiosis were notified in March 2011 compared to 109 cases notified during the same month of the previous year.  The cases ranged in age from less than one year to 56 years, with the highest number of cases in the 1-4 year age group (14 cases).  Of the 16 cases where the information was recorded, one case was hospitalised.  The highest number of cases was reported in Hutt Valley DHB (8 cases), followed by Waikato and Canterbury (5 cases each) DHBs. Other DHBs reporting cases were Auckland and Capital and Coast (3 cases each), Northland and Hawke's Bay (2 cases each) and Bay of Plenty (1 case) DHBs. Among the cases where risk factor information was recorded, 53.8% (7/13) had faecal contact, 58.3% (7/12) attended school, 46.2% (6/13) had contact with a symptomatic person, 6.9% (2/29) had recreational water contact, 10.0% (1/10) consumed untreated water, 16.7% (2/12) had consumed food from a food premise, 26.7% (4/15) had contact with farm animals and 7.7% (1/13) were overseas during the incubation period. One outbreak of cryptosporidiosis involving four cases was reported in March 2011.
  • Lead absorption: 29 cases of lead absorption were notified in March 2011 compared to 18 in the same month of the previous year. The highest numbers of cases were reported in Auckland and Counties Manukau DHBs (7 cases each). The cases were aged between three and 69 years with the highest number of cases in the 50-59 years age group (10 cases).  All 29 cases were male. Occupation was recorded for 12 cases: painter/decorator (2 cases), gasfitter, grain mill worker, fabrication engineering trades worker, mechanic, roofer, plumber, radiator fitter, labourer, and real estate agent (1 case each). Of these, 7 reported occupational exposure to lead. Of the remaining 5 cases, two cases reported small bore rifle shooting as a hobby.
  • Rickettsial disease:  One case of Q fever was reported during March. However, upon further investigation the case was found not to be a case.
  • Rheumatic fever: Twenty cases of rheumatic fever were notified in March 2011, compared to 11 cases during the same month last year. Of the 18 cases for whom hospitalisation status was recorded, 17 were hospitalised. All cases were notified from the North Island and over half the cases (11) were reported from Counties Manukau DHB. Cases were reported among Pacific Peoples (12 cases) and Maori (7 cases) ethnic groups.  Ethnicity was unspecified for the remaining case. Fourteen (70.0%) cases were aged between 5 and 14 years.
  • Ross River virus infection:  One case of Ross River virus still under investigation was notified in March 2011.  The case had been in Australia during the incubation period. Laboratory results are pending 
  • Rubella: Three cases of rubella (1 confirmed, 2 under investigation) were notified in March 2011 compared to no cases in the same month of the previous year. The cases were reported from Northland, Capital and Coast and Southern DHBs (1 cases each). The cases were aged under one year, 1-4 years and 20-29 years, respectively. Ethnicity was reported for two cases where one was recorded as Asian and the other European.  One case had not been immunised, and the immunisation status of the other two cases was unknown.
  • VTEC/STEC infection: 25 cases of VTEC/STEC infection were notified in March 2011, compared to 23 cases notified in the preceding month and 15 cases in the same month of the previous year. Sixteen cases were laboratory confirmed.  Counties Manukau and Waitemata DHBs had the highest number of cases (4 cases each). The cases were aged from 8 months to 86 years, with the highest number of cases in children aged less than five years (7 cases).  Of the 18 cases where information was recorded, 12 cases were hospitalised. Escherichia coli O157:H7 was isolated in 19 cases and Escherichia coli O131:H(Rough) in one case. The serotypes for the remaining cases are unknown as yet. Among the cases for which risk factor information was recorded, 100% (5/5) had contact with pets, 57.1% (4/7) had contact with farm animals, 33.3% (2/6) had contact with manure, and 10.0% (1/10) had contact with another person with similar symptoms during the incubation period. There were no outbreaks involving VTEC reported during March.
  • Taeniasis:  Two laboratory-confirmed cases of taeniasis were notified in March 2011. The cases were a male in the 20-29 years age group and a female in the 40-49 years age group from Capital and Coast DHB. The cases had reported overseas travel to Africa and Thailand during the incubation period.

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Report:

Monthly Notifiable Disease Surveillance Report - Mar 2011

Tables:

Monthly National Totals - Mar 2011

Monthly DHB Totals - Mar 2011

Monthly Rolling Totals - Mar 2011

 

DOWNLOADS

Monthly Notifiable Disease Surveillance Report - Mar 2011

Tables:

Monthly National Totals - Mar 2011

Monthly DHB Totals - Mar 2011

Monthly Rolling Totals - Mar 2011

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