If that trial validates the new approach, researchers will then move on to using the masks in trials with the new coronavirus.
"As a result of the way the cell network functions your device is constantly shouting into the air by means of radio signals a unique identity that validates you to the phone company.
"Our quest on Mars has been to 'follow the water' in our search for life in the universe, and now we have convincing science that validates what we've long suspected," said John Grunsfeld, Nasa's head of science.
Research validates that.
