A view shows vials containing Russian-made vaccines against the coronavirus disease (COVID-19) during a demonstration at a regional clinical medical and rehabilitation centre in Tver, Russia May 24, 2021. Vials contain vaccines Gam-COVID-Vac or Sputnik-V developed by the Gamaleya National Center of Epidemiology and Microbiology, CoviVac produced by the Chumakov Centre and EpiVacCorona made by Vector State Research Centre of Virology and Biotechnology. REUTERS/Tatyana Makeyeva