LuminUltra Technologies Ltd., the Fredericton-based company assisting in the production of millions of COVID-19 tests, detected coronavirus at its headquarters in the city's downtown last week. Using an environmental test developed in house, LuminUltra staff detected "a trace amount of SARS-CoV-2 on a surface in a common area" on July 16, communications director Jessica Stutt said in an emailed statement to CBC. "We immediately informed the Department of Health and have been following their guidance; all employees that have been in the area have been advised to self-isolate," Stutt said in the Friday email. "At this time no employees are symptomatic of COVID-19."