false positive 假陽性

false positive
繁：假陽性
简：假阳性

有兩名員工需要接受觀察，後來證實沒有出現接觸到毒劑的病癥。當局表示，機器檢查結果可能是「假陽性」，仍須進一步調查。

Facebook郵件中心疑接到沙林毒劑郵包 FBI到場調查（2019年7月2日）。TVB新聞，取自 http://news.tvb.com/world/5d1aaface60383d40bbf6ad8/Facebook郵件中心疑接到沙林毒劑郵包-FBI到場調查

Multiple San Francisco Bay Area news outlets are reporting that firefighters are on the scene of what is described as a possible exposure to “sarin gas” or another chemically similar nerve agent at a Facebook mailing facility in Menlo Park, California. It may have been a false positive machine detection.

Possible detection of Sarin reported at Facebook facility in Menlo Park, ‘no employees exposed,’ may be false positive. (2019, July 1). Boing Boing. Retrieved from https://boingboing.net/2019/07/01/sarin-gas-exposure-reported-at.html