Monthly Notifiable Disease Surveillance Report - Feb 2015

Tuesday 17th September 2019


Key notifiable disease trends

Chikungunya fever: 10 cases (9 confirmed and 1 probable) were notified in February 2015 compared to no cases notified during the same month of the previous year (Figure 1). All cases reported overseas travel during the incubation period to Samoa (6 cases), Kiribati (2 cases), Cook Islands, Fiji, French Polynesia and South America (1 case each). Two cases reported travel to more than one country.

Cronobacter species: One confirmed case was notified in February 2015. The case was a female in the 70 years and over age group from Lakes DHB.

Diphtheria: Three cases were notified in February 2015. After further investigation, one case has since been found not to meet the case criteria. The two confirmed cases were females in the 5–9 years age group from Counties Manukau DHB. Both cases were cutaneous cases and were in Pakistan during the incubation period.

Hepatitis C: 10 cases (4 confirmed and 6 under investigation) were notified in February 2015 compared to six cases (4 confirmed and 2 under investigation) notified during the previous month and two confirmed cases notified during the same month of the previous year. The cases were reported from Canterbury (4 cases), Taranaki (2 cases), Hutt Valley, Capital & Coast, South Canterbury and Southern (1 case each) DHBs. The age range for cases was 20–54 years. One confirmed case had risk factor information recorded, this case indicated a history of injecting drug use or body piercing/tattooing.

Hepatitis not otherwise specified (NOS): One confirmed case of hepatitis NOS (hepatitis E) was notified in February 2015. The case was a female in the 40–49 years age group from Southern DHB who was in India during the incubation period.

Hydatid disease: Two cases (1 confirmed and 1 probable) were notified in February 2015. The cases were males in the 30–39 and 50–59 years age groups from Counties Manukau and Northland DHBs. The confirmed case was in India during the incubation period and the probable case reported occupational exposure in the 1970s–1980s as a risk factor.

Leprosy: One case (under investigation) was notified in February 2015. The case was a female in the 10–14 years age group from Southern DHB who was in Kiribati during the incubation period.

Leptospirosis: 10 cases (7 confirmed, 1 probable and 2 under investigation) were notified in February 2015 compared to five cases notified during the previous month and three during the same month of the previous year (Figure 2). The cases were reported from Nelson Marlborough, West Coast (2 cases each), Northland, Counties Manukau, Waikato, Canterbury, South Canterbury and Southern (1 case each) DHBs. Five cases reported a high-risk occupation as a famer, slaughter or bushman.

Q fever: One case was notified in February 2015. After further investigation, the case has since been found not to meet the case criteria.

Rickettsial disease: One case was notified in February 2015. After further investigation, the case has since been found not to meet the case criteria.

Ross River virus infection: One confirmed case was notified in February 2015. The case was a female in the 60–69 years age group from Nelson Marlborough DHB who was in Australia during the incubation period.

Toxic shellfish poisoning: One case (under investigation) was notified in February 2015. The case was a male in the 50–59 years age group from Nelson Marlborough DHB. The case had collected and consumed pipis.

Diarrhoeic shellfish poisoning: One case was notified in February 2015. After further investigation, the case has since been found not to meet the case criteria.

VTEC/STEC infection: 22 cases (20 confirmed and 2 under investigation) were notified in February 2015 compared to 10 cases notified during the same month of the previous year. The highest number of cases was reported from Bay of Plenty DHB (5 cases), followed by Waitemata and Waikato (4 cases each) DHBs. Four cases were hospitalised. The highest numbers of cases occurred in the 1–4 years (8 cases) and 70 years and over (4 cases) age groups. The serotype/organism was identified by the Enteric Reference Laboratory for 20 cases of which 75.0% (15/20) were Escherichia coli O157:H7. Among the cases for which risk factor information was recorded, 62.5% (5/8) had contact with farm animals, 41.7% (5/12) had contact with recreational water and 33.3% (4/12) had consumed water from a non-habitual water supply.

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Report:

Monthly Notifiable Disease Surveillance Report - Feb 2015

Tables:

Monthly National Totals - Feb 2015

Monthly DHB Totals - Feb 2015

Monthly Rolling Totals - Feb 2015

 

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Monthly Notifiable Disease Surveillance Report - Feb 2015

Tables:

Monthly National Totals - Feb 2015

Monthly DHB Totals - Feb 2015

Monthly Rolling Totals - Feb 2015

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