(Rick Bowmer | AP) A technician holds blue preservation solution in a clean room where saliva collection devices are assembled at Spectrum DNA in Draper, April 3, 2020. The company has developed a test kit to detect the coronavirus in patients' saliva. At least two Utah companies have developed tests and gotten emergency authorization from the U.S. Food and Drug Administration: molecular diagnostics company Co-Diagnostics and ancestry-testing kit maker Spectrum DNA.