Monthly Notifiable Disease Surveillance Report - Feb 2012
Tuesday 21st March 2023
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Key notifiable disease trends
- Brucellosis: One case of brucellosis (female aged 50-59 years) was notified in February 2012 from Lakes DHB. The case is still under investigation awaiting further laboratory results but has a more likely alternative diagnosis.
- Campylobacteriosis: 659 campylobacteriosis cases were notified in February 2012 compared to 458 cases notified in the same month of the previous year. For the 12 month period ending 29 February 2012, the highest incidence rates were reported from Wairarapa (234.2 per 100 000 population, 95 cases), South Canterbury (222.7 per 100 000 population, 126 cases), and Hawke's Bay (207.6 per 100 000 population, 322 cases) DHBs compared to a national rate of 166.7 per 100 000 population.
- Hepatitis A: 19 cases of hepatitis A were notified in February 2012 compared to 5 cases in the same month of the previous year. Ethnicity was reported in 11 cases (57.9%) as Asian (7 cases), Pacific Peoples (2 cases), European (2 cases) and ethnicity is unknown for the remaining 8 cases. Cases were predominantly from the Auckland region (89.5%, 17/19 cases). Cases were aged between three and 67 years with eleven cases under the age of 16 years. Five cases reported overseas travel during the incubation period; three in India, one in Fiji, and one in the USA.
- Lead absorption: 42 cases of lead absorption were notified in February 2012 (34 confirmed, 8 under investigation), compared with 16 cases notified the previous month and 32 cases in the same month of the previous year. 39 of the cases were male, two female, and the sex of one case was unknown. The highest numbers of cases were reported in Auckland (18 cases) and Hutt Valley (9 cases) DHBs. For cases where age information was available, the majority were aged between 40 and 59 years (66.7%, 26/39). Where information was recorded, 90.9% (20/22) had exposure to lead materials at their place of work.
- Measles: 21 cases of measles were notified in February 2012 (14 confirmed, 2 probable, 5 under investigation), compared to 34 cases notified in the previous month and 17 cases in the same month of the previous year. The remainder of this section relates to the 14 confirmed and two probable cases only. The highest number of cases was reported in Counties Manukau DHB (8) followed by Canterbury and Waitemata (3 cases each), and Auckland and Northland (1 case each) DHBs. Cases were distributed by age group as follows: less than 15 months (6), 15 months-3 years (4), 4-9 years (2), 10-19 years (2), 20-29 years and 30-39 years (1 each). There were three hospitalisations reported. Of the 15 cases where vaccination status was recorded, 12 cases were not vaccinated, including five cases aged less than 1 year. Three cases had been vaccinated against measles with one case reporting having received two doses of vaccine, and three cases having received only one dose.
- Paratyphoid fever: Seven cases of paratyphoid fever were notified in February 2012, compared with no cases notified the previous month and 4 cases in the same month of the previous year. The highest number of cases was reported in Auckland (4), followed by Canterbury, Hawke's Bay, and Waitemata (1 case each) DHBs. Of the four cases where ethnicity information was available, 75% (3/4) were of Asian ethnicity. Four cases had travelled overseas during the incubation period; two in India, one in Indonesia, and one in the USA. Three cases were hospitalised.
- Pertussis: 470 cases of pertussis were notified in February 2012 (179 confirmed, 198 probable, 12 suspect, and 81 under investigation), compared with 420 cases notified the previous month and 73 cases in the same month of the previous year. The remainder of this section relates to the 179 confirmed and 198 probable cases only. The highest number of cases was reported in Canterbury DHB (84), followed by Capital and Coast (55), Nelson Marlborough (54), and Hutt Valley (37) DHBs. Cases occurred in all age groups, with 27.9% (105/377 cases) under 5 years old, including 27 cases aged less than 1 year. The highest numbers occurred in the 1-4 years (78), 40-49 years (53) and 30-39 years (42) age groups. The vaccination status was recorded for 238 (58.6%) of the cases. Of these, 76 were reported as not vaccinated (including three cases aged less than 6 weeks and therefore not eligible for vaccination), 15 received one dose of vaccine, 4 received two doses, 102 received three or more doses, and 41 were reported as having been vaccinated but no dose information was available. Of the cases where relevant information was recorded, 39.2% (94/240) attended school, pre-school or childcare, and 52.0% (90/173) had contact with a laboratory-confirmed pertussis case.
- Rheumatic fever: 18 cases of rheumatic fever were notified in February 2012, compared to 12 cases during the same month last year. 14 cases were initial attacks of rheumatic fever, and 4 were recurrent attacks. Of the 18 cases, 14 were hospitalised. All cases were notified from the North Island with the highest number of cases notified from Counties Manukau (10), Waitemata (3) and Northland (2) DHBs. Cases were only reported among Pacific Peoples (10 cases), and Māori (8 cases). The highest numbers of cases (7 cases) were in the 10 and 14 years age group.
- VTEC/STEC infection: 12 cases of VTEC/STEC infection were notified in February 2012, compared to 23 cases notified in the same month of the previous year. The highest numbers of cases were reported in Bay of Plenty (3 cases) and Waikato (3 cases) DHBs. The cases were aged between 1-4 years and 70+ years, with the highest number of cases in the 1-4 years age group (6 cases). 6 cases were hospitalised. Escherichia coli O157:H7 was isolated in six cases. Among the cases for which risk factor information was recorded, 71.4% (5/7) cases had contact with animals, 60.0% (3/5) had contact with pets, 42.9% (3/7) had recreational contact with water, and 25% (3/12) had used a public pool.
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Ph: +64 4 914 0700 Fax: +64 4 914 0770 Email: survqueries@esr.cri.nz |
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