The efficacy of an adjuvanted A(H1N1)v influenza vaccine in HIV-infected and immunosuppressed patients is unknown. Therefore we aim to investigate the immunoresponse as assessed by a anti-hemagglutinin assay before, 21 days after the first and 21 days after the second vaccination. The safety of the vaccination will be recorded by a standardized questionaire.
The purpose of this study is to evaluate the immunogenicity and safety of an adjuvanted A(H1N1)v influenza vaccine in HIV-infected and immunosuppressed patients after one and two injections.