Report Technical Advisory Cell: summary of advice 23 July 2021 Summary of COVID-19 advice provided to Welsh Ministers on 23 July 2021. Part of: Technical Advisory Cell: summary of coronavirus advice , Infections (Sub-topic) and Strategy and evidence: coronavirus (Sub-topic) Organisation: Technical Advisory Cell First published: 30 July 2021 Last updated: 30 July 2021 Documents Technical Advisory Cell: summary of advice 23 July 2021 Technical Advisory Cell: summary of advice 23 July 2021 , HTML HTML