COVID-19 Infection Survey

The COVID-19 Infection Survey (CIS) is the largest regular survey of coronavirus (COVID-19) infections and antibodies, providing vital information to help the UK's response to the pandemic. Find out all about the survey and what to expect if you are asked to take part.

  • About the study

    Information on what the COVID-19 Infection Survey (CIS) is and why it was created.

  • How to take part

    How to take part in the study and information on how and why you were selected.

  • Your appointment

    Details of what you can expect at your survey appointment.

  • How your results will be used

    How the ONS will store and use your samples and data.

  • Further help

    How to contact us for further information and find the study materials in other languages.