31.   Hjelle said the mice might also transmit the virus among themselves through sex, by walking in infected droppings or by urinating on one another.

32.   His team showed that the polio virus was transmitted among people chiefly by fecal contamination, usually through soiled hands.

33.   However, epidemiologists sprang into action over the weekend because arena viruses can be transmitted from person to person through coughing or sneezing under unusual circumstances.

34.   However, Shirley Fannin, Los Angeles County director of communicable disease control, said the hepatitis virus is usually transmitted from a fecal source.

35.   How was the virus transmitted?

36.   If a computer is started up with an infected disk in the floppy drive, the virus is transmitted to the hard disk.

37.   In Boston another mosquito bites that traveler and begins transmitting the virus.

38.   In children, hepatitis A often produces no symptoms, although a child can transmit the virus to others.

39.   In addition, people who know their HIV status are less likely to transmit the virus to others.

40.   In the first two to four weeks following the transplant, doctors will study blood samples to see which, if any, animal viruses have been transmitted.