41.   Equally important, the Manchester outbreak gave scientists glimpses of how hardy and opportunistic anthrax bacteria could be.

42.   Even a simple bacterium like E. coli is a jungle of interconnected metabolic pathways.

43.   Eradication of trachoma infection is not thought possible because the bacterium is ubiquitous, Cook said.

44.   Experiments in which common Earth bacteria were literally fired from a gun showed that they could survive that kind of jolt, Mileikowsky said.

45.   First, how and when was the bacteria introduced into the building?

46.   For example, detecting spores in a building or room cannot tell investigators how long the bacteria have been there.

47.   Fraser said she expected that the bacterium was able to switch on one set of genes for living in its insect host and another set for living in mammals.

48.   Gram-negative bacteria are of particular concern because they tend to be more resistant to antibiotics.

49.   Heat-sensitive E. coli bacteria would only be able to survive and infect the children if the meat were improperly cooked.

50.   If a drug could interrupt the signals, the film would not form, and the bacteria would be more vulnerable.