couple of questions

[goingoverboard]

Hi,

I've recently started worrying about HIV. I have a couple of questions I would like to ask about HIV transmission.

First, I engaged in masturbation with a girl last night. This morning I felt like i had a sore on my tongue and I touched it with the hand I used on her. I was wondering if I could be infected by some of the dried fluids on my hand touching the sore on my tongue.

My second question is about some peeled skin I have on my thumb. The thumb isn't cut, just the top layer of skin peeled off.  I have been so worried today that I have been trying not to touch anything with that hand. I went so far as to put a band aid on my thumb. So then I got scared that maybe the band aid itself had somehow been contaminated. The band aid itself seemed clean, it was in an unopened package and seemed normal.  Anyway, the question is can HIV be transmitted by a band aid?

[goingoverboard]

Thanks for the response. You answer really made me feel better.

I actually have a couple of more questions, and  if you could help with them I would really appreciate it.

First, can HIV be transmitted through contaminated food? Like if someone preparing your meal cut themselves and bled on the food before they served it to you.

The second question is more of a scenario. I was playing cards with some friends and one of them kept scratching his leg. It was making me nervous but I didn't say anything about it. Eventually he scratched it until it started bleeding. I never saw any blood on the cards themselves.  I was just wondering if some did get on the cards if HIV could be spread this way.

Thanks for taking the time to read my questions and I value your response.