Rape victims

Dear all,
Since I had a risk (negative) I have had an active interest in HIV, particularly its transmission.
I have a quick question:
It is the general consensus that HIV is actually a very hard disease to catch estimates currently being at 1/2000 for Female (+ve) male (-ve) transmission. I believe also that the value for the opposite is still at 1/1000. Therefore the chance of catching HIV on a single encounter, although not impossible, is very small.
My question being how come we hear of so many rape victims getting HIV after 1 rape encounter. Is this due to the fact that most rapes are forceful and there would be some wounds in the female (or male) victim? Or is the fact many of the girls are virgins so there is open wounds?
I know this seems like a morbid question but I would just like to know after hearing of some transmissions in Libya.
Thanks

[Teak]

If you believe you have been exposed to HIV and want help to judge your risk, would like advice about HIV testing, or have questions about the effectiveness of condoms or risks associated with specific sexual practices, this is the site for you.

[Localboy]

I expected this response from you. Could you please advise me on where to ask my question?

[Teak]

Any place but here.

[LIZZIE LOU]

i havent heard of so many rape victims getting hiv !

hiv transmission CAN happen on the first time.

now move along...