At an average of 14 secret ingredients per product, roughly 66 percent had never been tested for safety.

Washington state, where not even 1 percent of Medicaid children were tested.

An additional 4 percent had not been tested at all, or their test results could not be found.

About 2,600 officers, or 10 percent of the force, will be tested every year for heroin, cocaine and marijuana.

It was unclear whether another 18 percent were tested.

About 20 percent of the students in grades 8 through 12 have been voluntarily tested.

About 20 percent of the students in the pool are tested annually.

Now, in the United States less than 3 percent have been tested.

State officials believe only about 10 percent of those currently infected have been tested.

Of the 925 passengers who had been on the airplanes with the woman, 755 or 82 percent were tested for tuberculosis.