Relationship between age and incidence of invasive pneumococcal disease

Relationship between age and incidence of invasive pneumococcal disease during the 1920s (A), 1990s (B), and 2010s (C).

Data from:

Heffron R. Pneumonia with Special Reference to Pneumococcus Lobar Pneumonia, The Commonwealth Fund, New York, NY 1939.
Active Bacterial Core Surveillance Report, Emerging Infections Program Network, Streptococcus pneumoniae, 1997. Centers for Disease Control and Prevention. Available at: https://www.cdc.gov/abcs/reports-findings/survreports/spneu97.pdf (Accessed on May 30, 2023).
Active Bacterial Core Surveillance Report, Emerging Infections Program Network, Streptococcus pneumoniae, 2019. Centers for Disease Control and Prevention. Available at: https://www.cdc.gov/abcs/downloads/SPN_Surveillance_Report_2019.pdf (Accessed on June 13, 2022).

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