Residents of Yeoville neighborhood of Johannesburg, South Africa, wait in line to enter a grocery store Friday April 3, 2020. South Africa went into a nationwide lockdown for 21 days in an effort to control the spread of the coronavirus. The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death.(AP Photo/Jerome Delay)