Reviews on Long COVID:A scope of the literature. Update January 2025

• In this update, we identified 33 published reviews and 30 review protocols on Long COVID. • The number of reviews (n=33) is the same as in July 2024 (n=33), but fewer than in October 2024 (n=38), April 2024 (n=36), and January 2024 (n=42). • Across updates (with the same search strategy), the number of reviews has ranged from 29 in October 2022 to 50 in January 2023. • The largest categories of reviews were treatment or rehabilitation only (12/33), and the prevalence of symptoms or effects only (10/33); these two categories were largest in most previous updates. • The number of protocols (n=30) identified is fewer than in previous updates; as was the case in our last update (October 2024, n=35). • The largest category of protocols focused on the prevalence of symptoms or effects only (10/30), with treatment or rehabilitation only (5/30) being the next largest category.