51.   But the case, stemming from comments on her talk show about mad cow disease, will be allowed to proceed as a simple business disparagement case.

52.   But researchers in Britain believe mad cow disease is the likely cause.

53.   But the more women hear about mad cow disease and foot-and-mouth disease, the more jittery they get.

54.   But the fact is that mad cow disease continues to loom over Europe like an advancing shadow, many experts say, with much about it still a mystery.

55.   But unlike mad cow disease, swine fever is not thought to be a threat to humans.

56.   But to date, pigs fed contaminated mad cow tainted beef have not shown signs of the disease.

57.   But there is no doubt, he said, that the mice have mad cow disease that was passed on to them through human brains.

58.   But with that one case of mad cow disease, Japanese public opinion has turned radically against beef, faster than a spooked herd of Holsteins.

59.   By contrast, slaughter from mad cow disease does not lead to total destruction of the animal.

60.   By June, the sweetbreads had been replaced by foie gras because mad cow disease made Europeans uneasy about veal.