According to the forehead scan, she had a low-grade fever. But, she claims that her face was flushed at the time because she was angry about being detained - if true, that could result in an inaccurate reading from the forehead scan. Shortly after the forehead scan, her temperature was taken orally, and showed no fever.
I read that claim, too, and it might be true. But, in healthcare, no chances can be taken.
It seems other states are looking at what went wrong in TX and trying to avoid making the same mistakes.