Money CDC assesses plan to reopen Smithfield Foods pork plant in South Dakota, a US coronavirus hot spot April 16, 2020Joe Sneve and Lisa Kaczke, Sioux Falls Argus LeaderComments Off on CDC assesses plan to reopen Smithfield Foods pork plant in South Dakota, a US coronavirus hot spot The Smithfield Foods, Inc. plant in Sioux Falls, South Dakota closed indefinitely as COVID-19 cases among employees surpassed 500 this week.