1.   Murrain was usually fatal, while hoof and mouth disease permanently weakened animals without causing death.

2.   Although AIDS is usually fatal, there have always been long-term survivors who show few if any signs of overt illness.

3.   Cases caused by inhaling the bacterium are rare and usually fatal.

4.   Fearneyhough said rabies is preventable through vaccination, but is usually fatal in dogs once it moves into the nervous system.

5.   Five heart attacks occur on the exchange floor in a typical year, he said, and two of them are usually fatal.

6.   Foot-and-mouth disease does not harm humans and is usually fatal only to young animals.

7.   He has led AIDS activists in spurring scientists to explore new approaches for the usually fatal disease.

8.   He said the condition was usually fatal.

9.   He was diagnosed with amebic meningoencephalitis, a rare but usually fatal inflammation of the brain.

10.   In early trials, two of the vaccines being tested dramatically reduce a recurrence of melanoma, which is usually fatal.