Guidance COVID-19 spring booster 2024 (WHC/2024/009) (expired) A letter to health workers on the 2024 COVID-19 spring booster campaign. Part of: Health circulars: 2024 to 2027, Vaccination and immunisation Welsh Health Circulars (WHC), Protect yourself and others from coronavirus (Sub-topic) and Vaccination (Sub-topic) First published: 8 February 2024 Last updated: 25 July 2025 Documents COVID-19 spring booster 2024 (WHC/2024/009) (expired) COVID-19 spring booster 2024 (WHC/2024/009) (expired) , HTML HTML
