Merck (NYSE: MRK), known as MSD outside of the United States and Canada, today announced results from a Phase 2 trial (NCT02982972) evaluating the safety, tolerability and immunogenicity of V114, the company’s investigational 15-valent pneumococcal conjugate vaccine, as compared to the currently available 13-valent pneumococcal conjugate vaccine (PCV13) in healthy infants 6-12 weeks of age.