The Epidemiology of Meningococcal Disease in New Zealand in 2011

Sunday 16th December 2018


Key findings of meningococcal disease surveillance in 2011

One hundred and nineteen cases of meningococcal disease were notified in 2011, which equates to a rate of 2.7 per 100 000 population. The rate of disease of 2.7 per 100 000 in 2011 was still significantly higher than the pre-epidemic rate of 1.5 per 100 000 (1989–1990).

In 2011, the highest District Health Board (DHB) rates were recorded in Northland and Lakes DHBs. The DHBs with the lowest rates of meningococcal disease were Auckland and Waitemata.

The highest age-specific rates of disease continued to occur in children younger than 5 years of age in 2011.
Although age-standardised rates have decreased significantly for all ethnic groups, Māori and Pacific Peoples continue to experience higher rates of disease than the European or Other ethnic group.

In 2011, the strain type was determined for 92.6% of confirmed cases - 37.0% were due to group B:P1.7-2,4 and 27.0% were due to group C:P1.5-1,10-8.

Thirteen fatalities occurred in 2011, giving a case-fatality rate of 10.9%.

Of the 77 viable meningococcal isolates received by ESR from cases of invasive disease in 2011, 19.5% had reduced susceptibility to penicillin and 1.3% were rifampicin resistant. All isolates were susceptible to ceftriaxone and ciprofloxacin.

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The Epidemiology of Meningococcal Disease in New Zealand in 2011

 

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The Epidemiology of Meningococcal Disease in New Zealand in 2011

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