31.   Before AIDS, many health care experts believed that large-scale infectious diseases were a thing of the past.

32.   The disease is easy to treat if diagnosed early.

33.   The disease is totally unresponsive to conventional treatment.

34.   Disease has not been a problem because clean water is available.

35.   This disease is surprisingly difficult to catch as most people have a natural resistance to it.

36.   Doctors say the disease is probably inherited but not detectable at birth.

37.   Brain scans have confirmed that the disease is in remission.

38.   The disease is almost unheard of in developed countries.

39.   Disease is all too often one of the concomitants of poverty.

40.   Disease was a central dynamic in the decrease in population.