COVID-19 Hospitalizations, Vaccine Uptake, Vaccination Guidelines, and Vaccine Availability in Six Middle-Income Countries and Areas in Europe, May 2022-April 2024. - Whitehouse ER; Elish P; Kureta E; Kochinski D; Plavsa D; Chakhunashvili G; Kryeziu B; Abdyldaeva S; Ruiz MAS; Cohuet S; Humphreys J; Mersini K; et al. (Influenza and other respiratory viruses, 2025)