NEW YORK: A COVID-19 vaccine may be the only thing that can bring back "normalcy", United Nations (UN) Secretary-General Antonio Guterres said on Wednesday (Apr 15). "A safe and effective vaccine may be the only tool that can return the world to a sense of 'normalcy', saving millions of lives and countless trillions of dollars," he added during a video conference with the African countries that are members of the United Nations.