Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: A Randomized, Open-label, Parallel Design Study to Compare the Immunogenicity of Simultaneous Administration Versus Sequential Administration of Quadrivalent Influenza Vaccine and 23-valent Pneumococc
Brief Summary: The immunogenicity of simultaneous administration of quadrivalent influenza vaccine and pneumococcal vaccine was unknown. The purpose of present study is to compare the immunogenicity of simultaneous administration of influenza vaccine and pneumococcal vaccine with that of separate administration.