What if you could test for COVID using your smartphone camera? New research suggests it's possible.

Researchers from the University of California, Santa Barbara have developed a new, cheaper method for possible home COVID-19 testing that involves a smartphone camera and app. The new testing system, which is the subject of a research paper printed in the journal JAMA Network Open, uses some basic lab equipment and the app Bacticount to detect possible pathogens in a person's saliva. To use it, you load your saliva sample into a test kit sitting on a hot plate. You then add in a specific reactiv...