When the coronavirus pandemic was declared six months ago, international health experts were worried about people in Africa. Many feared the virus would cause great suffering across the continent. This has yet to happen. In fact, experts are now praising the actions African countries have taken to deal with the pandemic. They say those actions have been more effective than those taken by some richer countries, including the United States. John Nkengasong has helped shape Africa’s 54 countries into an alliance for fighting the pandemic. Nkengasong is director of the Africa Centers for Disease Control and Prevention.