A Multicenter, Double-Blind Study of the Safety, Tolerability, and Immunogenicity of a Pneumococcal Conjugate Vaccine (V114) Compared to Pneumococcal Polysaccharide Vaccine (PNEUMOVAX 23) and Prevnar 13 (Pneumococcal 13-Valent Conjugate Vaccine [Diphther

1.-To demonstrate that the safety profile of a single dose of V114 is acceptable. 2.-To compare serotype-specific IgG geometric mean concentrations (GMCs), as measured by Merck's pneumococcal electrochemiluminescence (Pn ECL) assay between recipients of a single dose of V114 and a single dose of PNEUMOVAX? 23 for the 14 shared serotypes (1, 3, 4, 5, 6B, 7F, 9V, 14, 18C, 19F, 19A, 22F, 23F, and 33F), as measured at 1 month postvaccination.