What is Pneumococcal Disease? Learn about pneumococcal disease, which is the most common cause of vaccine-preventable death worldwide in children younger than five years of age¹. 1 of 4 Photos 1 2 3 4 » OTHER GALLERIES gear January 19, 2012 12 Ways to Keep It Simple breakfast April 28, 2016 10 Back-to-School Breakfast Recipes eatsavvy July 4, 2016 Now Your Kids Will Eat Asparagus gear November 18, 2011 25 Gifts Under $25 gear June 14, 2016 19 Glorious Gluten-Free Recipes