title: [Pneumococcal vaccine: overview about the protective efficacy in different high risk groups and new progress in the development of a conjugate pneumococcal vaccine].
abstract: The author presents a review about the protective efficacy of polyvalent pneumococcal polysaccharide vaccines in different groups at high risk for severe pneumococcal infection and the difficulties in the development of a conjugate pneumococcal vaccine capable of offering protection to younger children.
authors.affiliation: Unidade de Ambulatório Geral do Instituto da Criançc-HCFMUSP.
authors.forename: L F
authors.initials: LF
authors.lastname: Bricks