TY - GEN T1 - The Alpha Variant B.1.1.7 Was Not Associated With Excess Healthcare Acquired COVID-19 Infection in a Multi-Centre UK Hospital Study PY - 2021/01/01 AU - Tettamanti FAT AU - Venturini C AU - Stirrup OT AU - Guerra-Assuncao JA AU - Alcolea-Medina A AU - Becket AH AU - Byott M AU - Charalampous T AU - da Silva Filipe A AU - Frampton D AU - Glaysher S et al ED - DO - DOI: 10.2139/ssrn.3893562 Y2 - 2024/12/22 ER -