Impact of PCV7 on Invasive Pneumococcal Disease Among Children Younger Than 5 Years: A Population-Based Study
Revathi R. Ramani, MD, MPH,
William N. Hall, MD, MPH,
Matthew Boulton, MD, MPH,
David R. Johnson, MD, MPH and
Bao-Ping Zhu, MD, MS
At the time of the study, all the authors were with the Michigan Department of Community Health, Lansing, Mich. Revathi R. Ramani and Matthew Boulton also were with the University of Michigan Preventive Medicine Residency Program, Ann Arbor.
FIGURE 1—Discharge rates for invasive pneumococcal diseases in children aged < 1 year before and after PCV7 introduction: Michigan, July 1994June 2000.