For more:
https://news.cgtn.com/news/2021-06-23/Singapore-battles-COVID-19-with-new-research-innovation-11klNEk9FHW/index.html

The island nation of Singapore has been tackling COVID-19 with social restrictions, safe distancing measures, mask wearing as well as innovative solutions from its scientists and researchers.

The latest system, TracieX or Tracking Respiratory & Airborne Chemicals Instantly and Effectively - Exhale, by the Nanyang Technological University spin-off company Silver Factory Technology, detects Volatile Organic Compounds in a person's exhaled breath to deliver test results within 2 minutes. Compared to RT PCR test, which is the gold standard for testing, TracieX's sensitivity rate is at 95 percent, and its specificity is at 97.8 percent.

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