VAC4COVID is a UK-wide online study, run by MEMO Research at the University of Dundee, to track COVID-19 vaccines and provide data to support vaccine monitoring.

While all licensed or authorised COVID-19 vaccines have been tested extensively for effectiveness and safety in large clinical trials, governments and researchers will keep watching how COVID-19 vaccines are working now they are being used in the wider population (as with every new medicine), to detect if there are any unexpected, rare conditions or side effects. This survey is one of the ways they will do this.

The survey is open to everyone in the UK aged 18 years old and over. People can sign up before or after vaccination. MEMO Research will keep in touch via email to ask about your experiences with the COVID-19 vaccinations and process, and any changes in your health; participants will be sent a monthly email asking for health updates (or weekly for 4 weeks after vaccination).

If you suffer any health problems before or after vaccination, telling MEMO Research about them during the course of this study will help them learn more.

Vaccines are crucial for reducing COVID-19 and the harm it causes to health. By taking part in the VAC4COVID Study, people can help researchers and government understand how people do after vaccination, and support public confidence in COVID-19 vaccines.

Health information provided by participants will be verified (where required) with health professionals and medical records; this is to ensure that all the information collected is valid. All findings from the study will be reported to the Medicines and Healthcare Regulatory Authority (MHRA) to help them make informed decisions about vaccine programmes.

To sign up and take part in the study, or for further information, please visit the dedicated VAC4COVID Study website (which is designed to be simple to use and provides a user-friendly way to report diagnoses and symptoms).