Introduction Because this year’s EADPH took place solely online the arrangements for the presentation of abstracts were different to those in a normal year. No posters were required and apart from the four abstracts whose presenters were competing on 4 September for the two GSK research prizes for graduates, all abstract presentations were given as 5 minute Powerpoint presentations, followed by 2 minutes for any questions on 3 September. Thirty nine abstracts were presented in four parallel sessions (groups) on 3 September and the four finalists for the two GSK research prizes for graduates presented their abstracts on 4 September. Thus a total of 43 abstracts were presented during the 2021 EADPH congress.