21.   At the same time, the Agriculture Department continues to monitor American cows for signs of mad cow disease.

22.   Authorities at Logan Aiport, anxious about mad cow disease, will confiscate it.

23.   B.S.E., known popularly as mad cow disease, converts in humans into a variant of Creutzfeldt-Jakob disease.

24.   ATLANTA - Discoveries in the Midwest of a wildlife malady similar to mad cow disease are raising fears that the illness may spread to other regions of the country.

25.   Because the cause of mad cow disease seems rooted in contaminated feed, cases have been found on small farms as well as large industrialized farms.

26.   Brains, in particular, are the source of much of the concern outside Japan about bovine spongiform encephalopathy, or mad cow disease.

27.   A plan to bring in the carcasses of several hundred sheep that are believed to be infected with a variant of mad cow disease ran into significant local opposition.

28.   A simple test developed in the U.S. might soon allow British farmers to identify cattle infected with mad cow disease.

29.   A new study of mad cow disease is casting doubt on what sort of infectious agent causes this and similar illnesses.

30.   A sudden drop in beef consumption because of concerns about mad cow disease means far fewer animals are being slaughtered for meat.