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  • Typing of pneumococcal surf...
    Brandileone, Maria Cristina C.; Andrade, Ana Lucia S.S.; Teles, Elaine M.; Zanella, Rosemeire C.; Yara, Teresa I.; Di Fabio, José Luis; Hollingshead, Susan K.

    Vaccine, 09/2004, Letnik: 22, Številka: 29
    Journal Article

    Pneumococcal protein vaccine based on pneumococcal surface protein A (PspA) is in development with the potential to offer broad range of protection against different strains. We have investigated the frequency of PspA family 1 (Fam1) and family 2 (Fam2) proteins among Streptococcus pneumoniae recovered from ongoing surveillance in Brazil. Fam1 and Fam2 were expressed in comparable rates among 366 isolates, with the potential coverage of 94.3%. PspA families were not associated to age group or source of isolates. However, considering the significant tendency of increasing prevalence of Fam2 associated to widespread dissemination of the genetically-related resistant strains, the monitoring of the PspA families derived from population-based data may be necessary in the context of vaccine development.