61.   It has an estimated incubation period of about ten years but then kills usually within six months of symptoms appearing, according to WHO.

62.   Just as those disorders were slow to emerge, some cancers and other illnesses have incubation periods of a decade or more, Bertell said.

63.   No illness has been reported so far as a result of the contamination, but the parasites have an incubation period of about a week.

64.   No illnesses have been reported yet, but the parasites have an incubation period of a week or more.

65.   Regardless of which species evolved the killer strain, the long incubation period has implications for predicting future flu outbreaks.

66.   Since the incubation period is unknown, no one knows how many people are likely to die from the illness.

67.   Suspicion has fallen on chickens, but the team says three of the four confirmed cases were apparently not in contact with poultry during the influenza incubation period.

68.   Symptoms include diarrhea, severe abdominal pain or cramping and the incubation period is generally four to five days.

69.   The disease has an average incubation period of five years.

70.   The disease has an incubation period of only two weeks and spreads rapidly and easily, so vaccination can slow the spread of the infection.