Vulnerable populations, health care workers to get first doses of Moderna Moderna vaccine distributed across Tennessee By Kelly Roberts | December 21, 2020 at 5:52 PM CST - Updated December 21 at 7:03 PM MEMPHIS, Tenn. (WMC) - Doses of the countyâs second COVID-19 vaccine, this one from Moderna, continue to be shipped from the Mid-South across the United States. The Tennessee Department of Health said the state has received thousands of doses, with the first administered this afternoon. Those Moderna vaccines are expected to go to local health departments, long-term care facilities and hospitals that didnât get the Pfizer vaccine. The Shelby County Health Department expects the shipment by Wednesday.