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Figure 3 | BMC Infectious Diseases

Figure 3

From: The persisting burden of invasive pneumococcal disease in HIV patients: an observational cohort study

Figure 3

Incidence of IPD with immunization. Crude incidences with 95% Poisson confidence intervals are shown for PPV-23 serotypes. The incidence of IPD within three years of immunization was significantly lower than the incidence before immunization (P < 0.001). A composite incidence >3 years post-immunization incidence (not shown; mean: 262, 95% CI: 131-469) was also significantly lower than incidence before immunization (P < 0.01).

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