ESANN 2020 will be fully organized online. The current sanitary situation in Europe, and the restrictions in force in Belgium about large gatherings do not allow us to organize a physical event. The health of all is our primary concern. ESANN 2020 will be organized online on Friday October 2 to Sunday October 4 and the program will not change. Instructions for speakers to prepare their presentation, and instructions for participants to follow the online sessions will be communicated directly to the participants.