Does the speed of development of the COVID-19 vaccines jeopardise their safety?

No.

The speed with which the vaccines have been developed is due to (1) the removal of administrative barriers, (2) the priority given to research and development of new COVID-19 vaccines, (3) rapid production and (4) the financial resources that were immediately made available. At no time there was any concession made to the quality and safety of the COVID-19 vaccines. By giving the highest priority to the COVID-19 studies, many years were gained. The COVID-19 vaccines meet the same strict requirements as all previously developed vaccines (e.g. seasonal influenza, etc). Only after sufficient demonstration that a COVID-19 vaccine is of good quality, effective and safe, the European Medicines Agency (EMA) approves it for use by the general public.