Monthly Notifiable Disease Surveillance Report - Aug 2013
Tuesday 21st March 2023
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Key notifiable disease trends
Campylobacteriosis: 637 cases of campylobacteriosis were notified in August 2013 compared to 531 cases notified during the same month of the previous year (Figure 1). For the 12 month period ending 31 August 2013, the highest DHB rates were in South Canterbury (293.5 per 100 000 population, 166 cases), West Coast (194.5 per 100 000 population, 64 cases), and Taranaki (191.3 per 100 000 population, 211 cases) compared to a national rate of 147.0 per 100 000 population. One finalised Campylobacter outbreak was reported in August (3 cases) and one interim outbreak (case numbers yet to be determined).Hepatitis A: 12 cases of hepatitis A were notified in August 2013, one of these cases has since been found to not meet case criteria after further investigation. Four cases were notified in the same month of the previous year. Ethnicity was recorded for 90.9% (10/11) of the cases, all of which were in the European or Other ethnic group. The highest numbers of cases were reported from Canterbury DHB (7 cases), five of which were part of an outbreak that was first reported in April 2013. The cases ranged in age from three to 63 years with the highest numbers of cases in the 30-39 years (3 cases). Two of the cases had travelled overseas during the incubation period: One travelled to Vanuatu and the other to multiple countries including United Arab Emirates, Scotland and England. One interim Hepatitis A virus outbreak was reported in August (case numbers yet to be determined).
Hepatitis C: Seven cases of hepatitis C were notified in August 2013 (2 confirmed, 1 probable and 4 under investigation) compared to one case notified during the same month of the previous year. Ethnicity was recorded for all of the cases: European or Other (5 cases) and Māori (2) ethnic groups. Both of the confirmed cases had risk factors recorded which indicated a history of injecting drug use.
Leprosy: One case of leprosy was notified in August 2013. The case was a male in the 40-49 years age group from Hutt Valley DHB. The case was in Samoa during the incubation period. The case is still under investigation as lab results are pending.
Measles: One case of measles was notified in August 2013, the case has since been found to not meet case criteria after further investigation.
Pertussis: 279 cases of pertussis were notified in August 2013 compared to 569 cases in the same month of the previous year (Figure 2). Thirteen cases were hospitalised and no deaths were reported. There were 35 (12.5%) cases laboratory-confirmed by isolation of Bordetella pertussis from the nasopharynx. A further 41 (14.7%) cases were laboratory-confirmed by PCR. The highest number of cases were reported from Nelson Marlborough (62 cases), Canterbury (46 cases), and Counties Manukau (29 cases) DHBs. Age was recorded for 99.6% (278/279) of the cases. The cases ranged in age from one month to 92 years, with 23.0% under five years old (including 19 cases aged less than 1 year). The highest number of cases occurred in the 1-4 and 40-49 years age groups (45 cases each) followed by the 5-9 years (31 cases), and 30-39 years (25 cases) age groups. The vaccination status was recorded for 147 (52.7%) of cases. Of these, 32 were reported as not vaccinated, 10 received one dose of vaccine, four received two doses of vaccine, 67 received three or more doses (including nine who had received all five doses), and 34 were reported as being vaccinated but no dose information was available. Of the cases where the relevant information was recorded 37.6% (76/202) attended school, pre-school or childcare, and 24.6% (28/114) had contact with a laboratory-confirmed pertussis case.
Ross river virus infection: One confirmed case of Ross River virus infection was notified in August 2013. The case was a male in the 30-39 years age group from Capital & Coast DHB and was in Australia during the incubation period.
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Ph: +64 4 914 0700 Fax: +64 4 914 0770 Email: survqueries@esr.cri.nz |
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