Easier than a blood test, saliva tests have the potential to detect cavities, infections and even cancer. But a lack of insurance coverage and other obstacles stand in the way of wider use.
(Image credit: dusanpetkovic)
Using saliva to detect disease holds promise, but it's not perfected yet
Easier than a blood test, saliva tests have the potential to detect cavities, infections and even cancer. But a lack of insurance coverage and other obstacles stand in the way of wider use.
Image: NPR Business
Originally published at NPR Business
