Impact of First SARS‐CoV‐2 Infection Variant on Serological Responses Against Omicron: Findings From the SIREN Study. - Insalata, Ferdinando; Atti, Ana; Carr, Edward J.; Otter, Ashley D.; Foulkes, Sarah; Dowgier, Giulia; Hobbs, Agnieszka; Wu, Mary Y.; Hopkins, Susan; Charlett, Andre; Beale, Rupert; Hall, Victoria (Influenza & Other Respiratory Viruses, 2026)