thankyou baker
the company doing the testing for 30 tyson plants is Matrix Medical LLC. hard to find much on them, but their headquarters in FL appears to be registered as a Foreign for Profit Corporation .
that seems strange.
https://breaking911.com/breaking-hundreds-of-workers-test-positive-for-covid-19-at-tyson-foods-chicken-plant-in-n-c/
https://www.corporationwiki.com/Florida/Orlando/aerocare-holdings-inc-3800849.aspx