(FILES) In this file photo illustration taken on November 23, 2020, shows a syringe and a bottle reading “Covid-19 Vaccine” next to the Pfizer company logo. - The World Health Organization warned that vaccines were no magic bullet for the coronavirus crisis, as Russia started vaccinating its high-risk workers Saturday and other countries geared up for similar programmes. (Photo by JOEL SAGET / AFP) <저작권자(c) 연합뉴스, 무단 전재-재배포 금지>