Researchers at Johns Hopkins say that a new "swish and spit test" is on the way to help find head and neck cancer.
They tested the genetic material in the saliva of a group of people both with and without these cancers. The spit test spotted cancer almost 43 percent of the time. The test accurately ruled out the disease more than 80 percent of the time which means it would be especially helpful in catching any recurrence of the disease.
Almost 50,000 people are faced with a diagnosis of head or neck cancer every year.