As stated in this article: "The real challenge, Obtera told Live Science, will be producing the cartridges and testing systems quickly. The company must practice social distancing on the manufacturing lines to keep workers from falling ill". If each worker is tested for covid 19 prior to starting their shift and if this rapid test is negative for covid-19 then they could work close to each other ... correct? If not, does that mean that is the test not accurate enough for the workers to take the risk of contracting covid 19 from each other?