COVID-19 vaccine effectiveness against the omicron (BA.2) variant in England

Affiliations

• ¹ UK Health Security Agency, London NW9 5EQ, UK.
• ² UK Health Security Agency, London NW9 5EQ, UK; National Institute for Health and Care Research (NIHR) Health Protection Research Unit in Vaccines and Immunisation, London School of Hygiene & Tropical Medicine, London, UK.
• ³ UK Health Security Agency, London NW9 5EQ, UK; Guys and St Thomas' Hospital National Health Service Trust, London, UK.
• ⁴ UK Health Security Agency, London NW9 5EQ, UK; National Institute for Health and Care Research (NIHR) Health Protection Research Unit in Vaccines and Immunisation, London School of Hygiene & Tropical Medicine, London, UK; NIHR Health Protection Research Unit in Respiratory Infections, Imperial College London, London, UK. Electronic address: jamie.lopezbernal2@phe.gov.uk.