A. Acquired immune deficiency syndrome, a fatal breakdown of the body's disease-fighting capacity, is caused by a virus known as HIV.

Eric told other children that his father had suffered "a fatal nervous breakdown," without knowing what that could possibly mean.

But the racing world was still groping for reasons, and finding none, for the fatal breakdown of the reigning 3-year-old, Prairie Bayou.

The race was marred by the fatal breakdown of the trainer D. Wayne Lukas's royally bred Gold Trader in the stretch.

George Washington proved infertile, was returned to racing, and suffered a fatal breakdown in the 2007 Breeders' Cup Classic.

In 1993 Colonial Affair's victory was tainted by the fatal breakdown of the favorite in that race, Prairie Bayou.

To drive, the Mercedes wallows more than Elvis singing Heartbreak Hotel, but until its fatal breakdown it doesn't miss a beat.

The only protection against their fatal breakdown is the abolition of the weapons.

About one of every 200 starters at Arlington has had to be put down; the industry as a whole averages about one fatal breakdown per 1,000 starters.

Ruffian was not without her own nest of them" - with a resulting rise of fatal breakdowns.