Singapore authorities have provisionally approved a Covid-19 breathalyser test that aims to show whether someone is infected with the coronavirus in under a minute, according to the local startup that developed the product.

Breathonix, a spin-off company from the National University of Singapore (NUS), said it is now working with the Health Ministry to run a deployment trial of the technology at one of the city-state's border points with Malaysia.

The breath analysis will be carried out alongside...