Which of the following statements about the transmission of HIV is FALSE?
A)During vaginal intercourse,female-to-male transmission is more likely than male-to-female transmission.
B)The presence of blisters or sores in the genital area increases the risk of HIV transmission.
C)HIV can be transmitted from needles used to inject drugs in more than one user.
D)The risk of transfusion-related HIV transmission has decreased dramatically because of testing of the blood supply.