Trial to Evaluate the Safety and Immunogenicity of a 20-valent Pneumococcal Conjugate Vaccine in Pneumococcal Vaccine-naïve Adults

Study of Acute Uncomplicated Seasonal Influenza A in Adult Subjects

Clostridium Difficile Vaccine Efficacy Trial

A Trial to Describe the Immunogenicity and Safety of 2 Doses of Bivalent rLP2086 (Trumenba) and a Pentavalent Meningococcal Vaccine in Healthy Subjects >=10 to

A Study to Evaluate the Efficacy and Safety of Pimodivir in Combination With the Standard-of-Care Treatment in Adolescent, Adult, and Elderly Non-Hospitalized Participants With Influenza A Infection Who Are at Risk of Developing Complications

Evaluation Of Clostridium Difficile Vaccine Lot Consistency In Healthy Adults 65 To 85 Years Of Age