The European Commission has carried out a Eurobarometer public opinion survey to analyse the degree of interest and information European citizens have about medical and health research. In particular, this study aims to measure the level of awareness among European citizens of European collaborative research projects on biological and medical issues, and to identify the factors and sources of information that can contribute to improving such awareness. Nearly 29,000 interviews were performed in 27 European countries, from mid to late 2006, and the results were analysed in 2007. The present... report sets out the study's main conclusions: -Europeans have a strong interest in biological and medical research. particularly regarding the added value that the results of such research can contribute to their daily lives. Around half of Europeans are aware that researchers specialised in biology or medical sciences have the opportunity to work with European colleagues on collaborative research projects. -Citizens trust the scientific and medical professions above all others when it comes to information on science or biological and health research, followed by the specialised press. International institutions -including the EU- and non-governmental organisations are significantly more trusted than regional or national governmental sources. -Television remains the most important information channel, followed by newspapers, radio and magazines. The growing use of the internet as a source of scientific information, especially among young Europeans, should also be taken into account.