But in recent months medical research has begun to offer hope for people who test positive.

But even during treatment, people tested positive 3% of the time.

"We're just trying to help our players from taking something that would cause them to test positive."

"We have to get people who test positive for the disease into treatment."

If the virus is the real cause, most cases would be expected to test positive.

People may test positive, he said, but never call back for the results.

Within the space of four years, only one student tested positive.

If you test positive, your sexual partners will need treatment.

Each year about one out of five has tested positive, team officials said.

Consider the case when only one person in the group will test positive.