There is hope for a Covid-19 vaccine, with eight out of 100 worldwide projects going into clinical trial stage this week and health experts concerned by whether when finally approved, there will be enough for the whole world. James Zhan, director of investment and enterprise at the United Nations Conference on Trade and Development (UNCTAD) said the eight met the required standards and will be evaluated and results announced in the next few months. He said this in his opening remarks of a virtual meeting organized by the World Health Organization...