According to the World Health Organization (WHO) each year up to one million children under five years of age die of pneumococcal disease worldwide.
Samkvæmt upplýsingum frá Alþjóða heilbrigðismálastofnuninni (WHO: World Health Organization) látast árlega allt að ein milljón barna undir fimm ára aldri úr pneumókokkasýkingum í heiminum.