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Background
Invasive pneumococcal disease (IPD) became a notifiable disease in New Zealand in 2008, and in the same year pneumococcal conjugate vaccine (PCV) was added to the childhood immunisation schedule.
Design
This was a retrospective study of IPD in infants aged <90 days reported to the national notifiable disease database, EpiSurv, from 1 January 2009 to 31 December 2013. All cases had...