The term "false positive" is the one used in the NIH-linked article:
"Potential false-positive rate among the 'asymptomatic infected individuals' in close contacts of COVID-19 patients"
https://www.ncbi.nlm.nih.gov/pubmed/32133832
This isn't an NIH-affiliated article, to be clear. It's from a Chinese set of authors on a Chinese journal. But, it's not, because the article is now nonexistent.