31.   Osborne also indicated that a type of intermittent therapy approach against breast cancer appears to be effective in some patients who build up drug resistance.

32.   Precise figures on the frequency of HIV drug resistance are lacking because there is no national tracking system.

33.   Plasmodium goes through stages of development in its host species and this, with its ability to develop drug resistance, has made it hard to combat.

34.   Researchers say the slowing decline is probably due to a combination of factors, including the development of HIV drug resistance.

35.   Rosenberg said he believes drug resistance and unusual rains, at least in the last two years, are major reasons.

36.   That already is a growing problem among chronically treated individuals, whose HIV may not be resistant at first but is able to acquire drug resistance over time.

37.   The company hopes to use them in developing drugs against cancer and infectious disease that could overcome the increasing problems of drug resistance.

38.   The drug also appears to have beneficial effects in staving off drug resistance, a common problem in HIV treatment, researchers said.

39.   The Global Health Council survey found that four out of five Americans are worried about mounting drug resistance, and most know that antibiotic overuse is a major cause.

40.   The misuse of anti-microbial drugs is perhaps the biggest cause of drug resistance.