This report provides an update on infectious diseases related to injecting drug use in Europe for the period up to June 2015. The report covers both the EMCDDA Drug-related infectious diseases indicator, which collects data on the situation, and the responses in the area. It includes highlights and new findings discussed during the indicator's annual expert meeting, held in Lisbon on 15 and 16 June 2015. This two-day event offered a platform for discussion among experts from the 28 EU Member States, Norway and Turkey. Topics receiving particular attention include: an update of the HIV situation and concerns in some countries; bacterial infections, including botulism outbreaks in Scotland and Norway; and changing patterns of injection in Europe and their implications for public health. Challenges in scaling up HCV treatments and good national examples in this area are also discussed.