A New Zealand expert who tested the accuracy of a Covid-19 saliva test being used at Auckland Airport says it as good a nasal swab, but it's cheaper and faster. New Zealand business Rako Science is providing the saliva test developed by the University of Illinois that's conducted 1.3 million on-campus tests. Victoria University Associate Professor, Dr Janet Pitman, was part of the team that checked the accuracy of the test. | Checkpoint