Remember the much hyped Abbott Labs testing device? The false negative rate for this isn't inspiring confidence for viable rapid testing.
https://www.bloomberg.com/news/arti...aise-more-questions-about-virus-test-accuracy
"When patients were tested immediately after infection, typically before symptoms occur, the false-negative rate was 100%. On the first day of symptoms, the false-negative rate was 38%. After three days of symptoms, false-negatives dropped to 20%. The rate began getting worse after five days, suggesting a narrow window for the most accurate results."