The prime minister of Sudan’s transitional government is urging world leaders to work together to get developing countries more COVID-19 vaccines.

The U.S. official who wrote a Pulitzer Prize-winning book on genocide landed Saturday in Khartoum on a five-day trip to Sudan then to neighboring Ethiopia

Ethiopia has been at loggerheads with downstream neighbors Egypt and Sudan for years over a $4.8 billion mega-dam it’s building on the Nile River. Tensions ratcheted up i...