Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Phase 1 Study to Determine the Safety, Infectivity, and Tolerability of Two Doses of Live Attenuated Recombinant Cold Passaged (cp) 45 Parainfluenza Type 3 Virus Vaccine, rHPIV3cp45, Lot PIV3 102A, De
Brief Summary: Human parainfluenza viruses (HPIVs) are a major health concern in infants and young children under 5 years of age, causing serious respiratory tract disease. The purpose of this study is to test the safety of and immune response to a new HPIV vaccine in healthy infants and children.