1.   At issue is a disease called brucellosis which, if passed on to cattle, could cause them to abort their calves and force a quarantine on Montana beef.

2.   In addition to the one dead cow, about a half-dozen pregnant cows aborted their calves because they were too sick to carry them to term.

3.   In Vermont, cattle would become infected by brucellosis, a disease that causes cows to abort their calves.

4.   The management plan calls for bison that wander outside the park to be captured and tested for brucellosis, a disease that causes cows to abort their calves.