简单快速便宜，棒。怀疑对感染初期，无症状，或症状很轻时，检测误差大。

研发者没有提示原理和样品预处理，

The center said in an initial clinical trial involving hundreds of patients, the new artificial intelligence-based device identified evidence of the virus in the body at a 95% success rate.

......

The amount of virus present in saliva increases as patients get sicker, he said, and a big challenge is to detect in “people who are borderline”.

https://www.reuters.com/article/us-health-coronavirus-israel-detection/israeli-hospital-trials-super-quick-saliva-test-for-covid-19-idUSKCN25923A