A man stretches at the entrance of his home in Bo-Kaap, Cape Town, South Africa, Tuesday, April 7, 2020 as South Africa continued its 21 days lockdown in an effort to control the spread of the coronavirus. The virus 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/Nardus Engelbrecht)