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 birthday-themes July 12, 2016 Circus Party partysavvy July 12, 2016 Hollywood Party gear June 14, 2016 The Hunt Starts Now! birthday-themes July 12, 2016 LEGO Party birthday-themes July 12, 2016 Flowers & Bugs Birthday Party