warned health care providers of false-positive coronavirus test results using the Thermo Fisher Scientific TaqPath COVID-19 Combo Kit.The FDA, which approved Emergency Use Authorization (EUA) for the kit in March, said the issue stems from the kit itself as well as an outdated software system, according to a press release.Thermo Fisher Scientific has updated its kit instructions, and the FDA is recommending medical professionals "promptly" implement software updates to reduce the frequency of false-positive results.RELATED: CoronavirusNOW.com, FOX launches national hub for COVID-19 news and updatesThe warning comes nearly a month after Connecticut public health officials first reported that at least 90 people had received false-positive.