11.   They dusted insecticides over vast areas to kill fleas that could spread plague bacteria from rodents to humans.

12.   Using the contaminated knife and cutting board, he spreads the bacteria to the rest of the food he is preparing.

13.   He said investigators plan to take a closer look at food distributors who might have spread the bacteria.

14.   In the United States and some other Western countries, hamburgers and scrambled eggs prepared by mass catering services can readily spread the bacteria, he said.

15.   Infected people do not spread the bacteria to others.

16.   Investigators have said they did not know whether the anthrax bacteria has been spread by domestic extremsits or by international terrorists.

17.   She noted that the new vaccine makes youngsters less likely to carry and spread the bacteria.

18.   She noted that the new vaccine makes youngsters less like to carry and spread the bacteria.

19.   The bacterium is spread through food, including undercooked meat and raw vegetables, as well as water and human contact.

20.   The bacteria are spread through saliva.