Airport, MUSC release COVID-19 testing update for week of Christmas With Christmas and holiday travel ramping up, the Charleston International Airport and MUSC Health have released an update about their COVID-19 testing schedule for the week of December 21st. (Source: Live 5 News) By Chloe Rafferty | December 19, 2020 at 1:05 PM EST - Updated December 19 at 1:11 PM NORTH CHARLESTON, S.C. (WCSC) - With Christmas and holiday travel ramping up, the Charleston International Airport and MUSC Health have released an update about their COVID-19 testing schedule for the week of December 21st. They say testing will be held on Monday the 21st, Tuesday the 22nd, and Wednesday the 23rd from 1:30 p.m. to 4:30 p.m..