1.   The issue was whether or not the bacteria in his body would contaminate the local ecosystem.

2.   Be careful not to allow bacteria to contaminate the wound.

3.   Bacteria may contaminate them when you flush the toilet.

4.   Dailey said she did not know Stevens, and it remains unclear how the bacteria contaminated the three office workers.

5.   Food-borne botulism is caused when certain foods are contaminated by the botulism bacterium, which is commonly found in soil.

6.   Cholera is caused by consuming water or food contaminated by bacteria.

7.   Dr. Laurence Gruer of the Greater Glasgow Health Board said it was unclear where in the delivery line the bacteria had contaminated the heroin.

8.   Lungs are particularly difficult to find because they are often damaged by smoking or pollution and easily contaminated by bacteria from the digestive system.

9.   Russia effectively banned American chicken imports this weekend over complaints that too much of the poultry is contaminated by bacteria.

10.   The salmonella bacteria often contaminates eggs, and can be deadly, although most people recover within a week without treatment.