Dear professor, I’ m really sorry but I may have offended you with no intention and I’d like to beg your forgiveness. My English is not so good, so what I sent to you was translated by others. I’m always worrying about whether it can correctly express my thoughts. Thank you very much for your answers. They are of great help to me. Thank you again, and best wishes to you!
How long will the virus in the isolated blood of HIV carriers or AIDS patients lose the infection ability?
first it was your arm that pressed on a mat...then it was your hand on a cushion. both times you stated there "may have been a wound"
now it's your arm WITH wound.
either way, you never had a risk