CLOSER has added 15,000 new variables including 5,000 COVID-19 related to CLOSER Discovery – the UK’s most detailed search engine for longitudinal data. Users can now search and explore the latest dataset metadata from CLS’s second COVID-19 questionnaire, the Avon Longitudinal Study of Parents and Children’s Antibody Test, and Understanding Society’s fourth questionnaire and dataset metadata. Read more about the content update and start exploring the data.