NATALIE GROVER and JENNIFER RIGBY GHANA has become the first country in the world to approve a new malaria vaccine from Oxford University, a potential step forward in fighting a disease that kills hundreds of thousands of children each year. The approval is unusual as it comes before the publication of final-stage trial data. It is unclear when the vaccine may be rolled out in Ghana as other regulatory bodies, including the World Health Organization (WHO), are still assessing its safety and effectiveness. "The WHO can provide support, but it is not an approving institution. The FDA has the mandate…