Singapore approves Covid breath test that gives immediate result

A breath test designed to detect Covid-19 and give accurate results within a minute has been approved for use in Singapore. The test, developed by National University of Singapore spin-off startup Breathonix, works like a standard breathalyzer test. A person blows into a one-way valve mouthpiece, and compounds in the person’s breath are compared by machine learning software against the sort of breath signature that would be expected from someone who is Covid-positive.