On July 22, we landed in Johannesburg around dinner time. We stayed there overnight, and the next morning flew to Lilongwe, Malawi, which took a couple of hours. You can see in the photos at Lilongwe that there is a lady scanning passengers' foreheads checking for fever as we enter the airport. The other large airports had infrared cameras for this purpose. As we were about to learn, many things in Malawi are much more labor intensive than the same tasks in the United States or elsewhere.
Feel free to post questions in the comments, and I will try to answer them.