A Rationale for Change: An Increase in Invasive Pneumococcal Disease in Fully Vaccinated Children.

Increasing numbers of cases of invasive pneumococcal disease in fully vaccinated children have occurred in Australia since 2013. A review of cases informed a change from a "3 + 0" infant schedule (13-valent pneumococcal conjugate vaccine at 2, 4, and 6 months) to a "2 + 1" schedule (2, 4, and 12 months).