21.   Lethal diseases on the rise worldwide.

22.   Since her surgery, her older sister and three members of another family underwent the same pre-emptive operation and also spared themselves from the usually lethal disease.

23.   Tiffany was diagnosed a year ago with acute lymphoblastic leukemia, a lethal disease characterized by a marked increase in white blood cells.

24.   Without that diversity, a lethal disease that struck one cow might wipe out all the clones too.

25.   Some Guatemalan health officials claim the government is hiding the fact that the lethal disease has killed at least two in the country this year.