S. Africa's number of COVID-19 cases rises steadily amid massive testing

A notice to remind people of keeping a distance is seen at the entrance of a supermarket in Johannesburg, South Africa, on April 7, 2020. The number of COVID-19 cases in South Africa has risen steadily over the past few days amid massive community testing in a 21-day national lockdown. The country reported a total of 1,749 cases as of Tuesday. (Xinhua/Chen Cheng)