PRNewswire-FirstCall/ -- The World Health Organization (WHO) has granted prequalification to Prevenar 13* (Pneumococcal polysaccharide conjugate vaccine [13-valent, adsorbed])for active immunization of infants and children from 6 weeks through five years of age against invasive disease, pneumonia and otitis media caused by the 13 pneumococcal serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F) contained in the vaccine.