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. 2019 Nov 22;68(46):1069–1075. doi: 10.15585/mmwr.mm6846a5

FIGURE.

The figure is a line chart showing invasive pneumococcal disease incidence among adults aged ≥65 years, by pneumococcal serotype, in the United States, during 1998–2017.

Invasive pneumococcal disease (IPD) incidence among adults aged ≥65 years, by pneumococcal serotype* — United States, 1998–2017

Source: Active Bacterial Core Surveillance, unpublished data, 2019.

Abbreviations: PCV = pneumococcal conjugate vaccine; PCV7 = 7-valent PCV (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F); PCV13 = 13 valent PCV (PCV7 serotypes plus 1, 3, 5, 6A, 19A and 7F).

* Serotype 6C showed cross-protection from 6A antigen in PCV13 and was grouped with PCV13 serotypes for IPD.