11.   His viral load, the measure of HIV in the blood, dropped so low that doctors could no longer detect it.

12.   In the days after anthrax killed a Florida tabloid editor, Americans have endured a crash course in the rare disease, including how doctors detect it.

13.   Last Friday Weldon successfully underwent a coronary artery bypass graft in Maryland after doctors detected blockage in his coronary artery.

14.   Last week, his parents had said they were considering taking him off the life support system because doctors had detected little brain activity.

15.   Often, doctors could not detect any virus in their blood by the most common tests.

16.   She was taken to a hospital, where doctors detected an irregular heartbeat and suggested installing a pacemaker.

17.   Sometimes a doctor can detect an abdominal aortic aneurysm during a routine physical before it leaks and take preventive steps.

18.   Soon, the doctors detected that the diagonal artery, a branch of the bigger left anterior descending artery, was almost completely blocked.

19.   Soon, the human genome will be completely mapped allowing doctors to detect, treat and prevent disease on a level unimaginable a few decades ago.