be in this state ever. never. >> reporter: food processing plants are struggling to get food to them. 51 covid related closures just in one part of the midwest. and coronavirus outbreaks reported in meat-packing plants in at least ten states. tyson foods tonight shuttering one of the country's biggest pork plants. nearly 200 employees testing positive for the virus. the nation's biggest outbreak remains at the smithfield pork plant in south dakota. more than 780 infected. this man says some employees used hair nets as masks. >> like a balaclava type. you cover your face and your nose. >> reporter: he later tested positive. smithfield says they're doing everything in their power to help protect their team members from covid-19 in the workplace. >> matt, we've been reporting on