7-Valent pneumococcal conjugate vaccine and lower respiratory tract infections: Effectiveness of a 2-dose versus 3-dose primary series

Abstract Background Immunogenicity studies suggest antibody responses from a 7-valent pneumococcal conjugate vaccine (PCV7) regimen consisting of 2 doses in the primary series are less immunogenic, for at least several vaccine serotypes, compared with a regimen consisting of 3 doses; evidence of eff...

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