31.   By pumping in air through the piping under the landfill, the bacteria can be stimulated to work harder.

32.   By Thursday morning, subsequent tests by state and federal labs confirmed the bacteria was Bacillus anthracis.

33.   Clinical trials are now under way to make sure the modified bacteria are not harmful to people.

34.   Coliform bacteria are in the water and could cause fever, diarrhea, cramps and vomiting.

35.   Coliform bacteria is not harmful itself, but its presence indicates that other bacteria that does cause disease may be present.

36.   DeLollis believes the bacterium may be a significant cause of childhood asthma, which is on the increase throughout the developed world.

37.   Denitrifying bacteria are too scarce to clean up all nitrogen pollution, but they could be used much more extensively.

38.   Different bacteria are sensitive to different antibiotics, and the drug you took before may do you no good now.

39.   Doctors in the past, hoping to avoid endoscopy, sometimes treated ulcer patients with antibiotics without knowing whether the bacteria were present, Hamilton said.

40.   Each time antibiotics are given, they may be less effective because more bacteria are resistant.