Responses after one dose of a monovalent influenza A (H1N1) 2009 inactivated vaccine in Chinese population-A practical observation

A single 15-μg dose of a monovalent, unadjuvanted inactivated 2009 H1N1 influenza vaccine was well tolerated, and induced a protective immune response in the majority of subjects aged 18-60 years (clinical trials gov number, NCT01055990).