Study title

Knowledge about influenza H1N1 (swine flu).
Topics: intention to get vaccinated against seasonal influenza; awareness of pandemic H1N1 flu (swine flu); concern of swine flu developing into a serious risk for the own country; likelihood for respondent to catch H1N1 flu; assessment of the danger of swine flu compared to regular seasonal flu; self-rated knowledge about H1N1 flu; measures to prevent swine flu; change in personal behaviour and measures taken to prevent swine flu; trust in the following institutions with regard to information about H1N1 flu: national health authorities, European authorities, health professionals, media, internet; assessment of the appropriateness of coverage with issues on H1N1flu in the media; satisfaction with preventive measures of national authorities; interest in preventive measures of other countries; protection of seasonal flu vaccination against swine flu; information sources about H1N1 flu vaccine; intention to get vaccinated against H1N1 flu and reasons; assessment of the effectiveness and safety of the vaccination; group of people with highest risk to catch swine flu. Demography: sex; age; age at end of education; occupation; professional position; type of community. Additionally coded was: respondent ID; interviewer ID; language of the interview; country; date of interview; time of the beginning of the interview; duration of the interview; type of phone line; call history; region; weighting factor.