11.   Prevention is critical because once people contract the illness, doctors can provide only treatment that eases symptoms.

12.   Some are HIV positive, and fear they could contract illnesses from another resident.

13.   The USDA tests only animals known to contract the illness.

14.   They instead based the advisory on interviews with people who had contracted the illness.

15.   People are believed to contract the illness by eating meat products from cattle with bovine spongiform encephalopathy, or mad cow disease.

16.   People are believed to contract the illness by eating meat from cattle with bovine spongiform encephalopathy, or mad cow disease.

17.   Quested said protein energy malnutrition was on the rise and babies routinely contracted related illnesses such as severe diarrhoea and pneumonia.

18.   A civilian researcher working for the Army on a vaccine against a rare bacterial disease contracted the illness after accidentally being exposed to bacteria.

19.   A New York Post employee became the seventh person nationwide to contract the illness.

20.   Cameron did not say when or how he contracted the illness.