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IPD yearly incidence per 100,000 population pre-vaccination (0 years) and after 10 and 40 years post-PCV13 with the competition parameter cN = 0.04. Abbreviations: cN, competition parameter; IPD, invasive pneumococcal disease; NVT, non-vaccine types; PCV13, 13-valent pneumococcal conjugate vaccine; VT, vaccine types.
