Inspired by a group working on a saltwater mouthwash covid-19 test in British Columbia, a researcher is now testing it out in Tucson, Ariz, reports KTAR.

The University of Arizona is examining a new method of COVID-19 testing that uses saltwater mouthwash instead of nasal swabs.

The test was devised by Michael Worobey, who serves as the head of the university’s Department of Ecology and Evolutionary Biology.

Worobey said the mouthwash test differs from other saliva-based versions such as the antigen and polymerase chain reaction (or PCR) tests in that it relies on a saltwater rinse and gargle.

Read more at KTAR.