Crackdown on a virus.

Reports on efforts to control the spread of foot-and-mouth disease among livestock and to protect the food supply. Details of the disease and cases traced to the British infection; Steps taken by the United States Food and Drug Administration to protect U.S. herds and the financial well-being of U.S. farms; What is being done in Europe as of March 2001 to prevent the spread of the disease; Suggestion that the European community views the measures as protectionism. INSET: Panic Is Not on the Menu--Yet, by J.F.O..