Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Phase 1 Study to Determine the Safety, Infectivity, Immunogenicity and Tolerability of 2 Doses of Live Attenuated Recombinant Cold-passaged (cp) 45 Human Parainfluenza Type 3 Virus Vaccine, rHPIV3cp45
Brief Summary: Human parainfluenza virus type 3 (HPIV3) is a major cause of pneumonia and other respiratory diseases in infants and children. This study will evaluate the safety and immune response of an HPIV3 vaccine in infants and young children.