Assessing the safety of COVID-19 vaccines

The Global Vaccine Data Network (GVDN) is gearing up to be able to collaboratively assess the safety of COVID-19 vaccines once they have been introduced. Part of this work involves collecting information about background rates of potential Adverse Events of Special Interest (AESI) i.e. medical conditions that may be related to vaccinations. Fears about AESIs often don’t take account of background rates.