Which vaccine should you get? 'The vaccine thatâs available to you today,' Vanderbilt doctor says Dr. Schaffner weighs in on COVID one year later NewsChannel 5 spoke with Dr. William Schaffner, an infectious diseases expert at Vanderbilt, about the anniversary â a year after NC5 interviewed him on the day the first case was announced. and last updated 2021-03-05 15:14:57-05 NASHVILLE, Tenn. (WTVF) â Friday marks one year since the first reported case of COVID-19 was reported in Tennessee. NewsChannel 5 spoke with Dr. William Schaffner, an infectious diseases expert at Vanderbilt, about the anniversary â a year after NC5 interviewed him on the day the first case was announced.