Projected future incidence of Invasive pneumococcal disease (IPD) and Community Acquired Pneumonia (CAP) caused by the PCV13 vaccine types per 100,000.

In 2018/2019 a new steady state was assumed to be reached and the same incidence was continued after.2018/2019年，学界假定已达成新的稳态（steady state），且此后该发生率（incidence）持续保持一致。