1. Early impact of pneumococcal conjugate vaccine on invasive pneumococcal disease in Singapore children, 2005 through 2010 
Koh Cheng Thoon, Chia Yin Chong, Nancy Wen Sim Tee 
International Journal of Infectious Diseases 
Volume 16, Issue 3, Pages e209-e215 (March 2012)
DOI: /j.ijid
Copyright © 2012 International Society for Infectious Diseases Terms and Conditions

2. Figure 1
Distribution of invasive pneumococcal disease cases classified by clinical syndrome, age group, and period.
International Journal of Infectious Diseases  , e209-e215DOI: ( /j.ijid )
Copyright © 2012 International Society for Infectious Diseases Terms and Conditions

3. Figure 2
Trends in incidence of invasive pneumococcal disease classified by age group and period.
International Journal of Infectious Diseases  , e209-e215DOI: ( /j.ijid )
Copyright © 2012 International Society for Infectious Diseases Terms and Conditions

4. Figure 3 Trends in invasive pneumococcal disease from 2001 to 2010.
International Journal of Infectious Diseases  , e209-e215DOI: ( /j.ijid )
Copyright © 2012 International Society for Infectious Diseases Terms and Conditions