The 15th European Social Science History Conference will take place 26-29 March 2025 in Leiden, the Netherlands. We are aiming for a session on ‘Changing diseases in changing cities’ & ‘Inequality in Health’ with participants from our COST-Action GREATLEAP and the IUSSP Panel Epidemics and Contagious Diseases: The Legacy of the Past. If you are interested in joining one of these sessions, please email to michel.oris@cchs.csic.es & tim.riswick@ru.nl your title, the authors, and a short abstract of your presentation before 1 April 2024. We anticipate that our Action will be able to provide a couple of ITC Conference Grants and/or Dissemination Conference Grants to scholars who are selected to present but lack the financial means to attend otherwise. If you would like to organize a session at another conference within GREATLEAP, please contact tim.riswick@ru.nl