https://news.emory.edu/stories/2021/07/covid_survivors_resistance/index.html?fbclid=IwAR2uFkHqfryXhUXDVMLrCB7tBEF2WscFB-jsV0I3bm4SqNlXCz3cxk4y8M4#.YQXrNZrT5zU.facebook 214 views21:54