– infographic – data – slide set – blog post (updated regularly)Added 'COVID-19 therapeutic agents: technical briefings'.Added 'SARS-CoV-2 variant of concern diagnostic assurance' and 'Reflex (genotyping) assays for identification of priority SARS-CoV-2 variants of concern'.Added 'SARS-CoV-2 variants of public health interest' under 'Investigation of SARS-CoV-2 variants'.Added link to 'Increased household transmission of COVID-19 cases associated with SARS-CoV-2 Variant of Concern B.1.617.2: a national case-control study'.Added links to 'Confirmed cases of VOC-21APR-02 by week' under Data.Added 'Investigation of SARS-CoV-2 variants' section.Added 'COVID-19 surge testing outcomes reports: management information' under Surge testing.Added Data and Surge testing sections.Added link to 'SARS-CoV-2 lateral flow antigen tests: evaluation of VOC1 (Kent, UK) and VOC2 (South Africa)' guidance.Added 'COVID-19 variants: genomically confirmed case numbers'.Added 'SARS-CoV-2 VOC: investigating and managing individuals with a possible or confirmed case'.Added link to New variant clustering in households analysis (ONS).Added link to Central Alerting System (CAS) alert under 'Guidance and information'.Added links to news stories.Added 'SARS-CoV-2 lateral flow antigen tests: evaluation of VUI-202012/01'.First published..