31.   Scientists have known that Ebola usually spreads from an infected person to another individual and through contamination in clinics or hospitals.

32.   Ruprecht pointed out that many people seem to be unaware that oral sex with an infected person is risky.

33.   She has already introduced such a bill, which would also seek to notify the partners of the infected persons.

34.   Smallpox can be transmitted through the air in the droplets of saliva, or if an infected person comes into physical contact with another person.

35.   Spouses or other partners of infected people are not notified without the consent of the infected person.

36.   Stone thinks that the accumulation of stress tips the infected person over into illness.

37.   That meant that if a newly infected person donated blood, the infection might not be detected.

38.   That allows authorities to isolate infected persons and even set up traffic blockades.

39.   The bacteria cause infection when they are ingested, usually through tainted food or water, or when there is exposure to an infected person.

40.   The brain becomes filled with holes, like a sponge, as the infected person or animal loses muscle control and becomes demented.