Heart failure is often fatal.
If not treated quickly, it is often fatal.
Marburg, a close relative of the Ebola virus, is often fatal within a week.
It is not usually fatal when treated, unlike inhalation anthrax, which is often fatal.
Inhalation anthrax is extremely rare in humans, but if left untreated is often fatal.
People die from chemotherapy, but because we recognize that cancer is often fatal, we accept the risks of treatment.
CF is cystic fibrosis, a genetic disease that causes the lungs to fill up with mucus and is often fatal.
Linked to dirty water, poor sanitation and crowded settlements, the intestinal infection causes dehydration and is often fatal.
For example, although Tay-Sachs disease is often fatal in early childhood, some forms do not present until adulthood.
A means of early detection is much needed, doctors say, because ovarian cancer is usually diagnosed late, and as a result is often fatal.
This is a type of food poisoning that is often fatal when its victims are very young or very old or have some other disease.
