A healthcare worker prepares to give injection of Sputnik V vaccine at a local hospital in Nur-Sultan, Kazakhstan, on Feb. 1, 2021. Kazakhstan began its coronavirus vaccination campaign Monday using Russian-made Sputnik V. According to the ministry, the vaccination, carried out on a voluntary and free basis, will continue until the end of 2021 and will cover up to 6 million people. (Photo by Kalizhan Ospanov/Xinhua)