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: Summary of coronavirus advice: May 2020 to August 2022, Summary of coronavirus advice: September 2022 to August 2023, 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