Hello,
i recently had a serology hiv test at the beginning of this month to rid my fears after worrying a littele every now and then about hiv for about 2 & a half years since an incident in 2003, which was a bit stupid in the first place.



I'm just beginning to pick up my life again now, and feeling a little more confident; however, sometimes I still feel paranoid about a few minor things. I'm not worried so much, but hopefully these things will help my knowledge for the future.



Questions:
1. The hiv test I had involved 2 large samples of blood, as the test involved testing for hepatitis a & b too. Would the hiv test have been likely to be performed twice?
Just that it would help further cement the facts in my mind. Also, I read about the elisa test- is it 100% accurate? I'm fairly certain it is.



2. I've just been given a negative result, but some things have made me paranoid still. How long does hiv last outside the body, even in wet locations or if it is wet? My reason for asking is that there was a wet piece of tissue on the road from a rain shower earlier that morning on the road,(i dont know if any fluids whatsoever were on it or had been on it) and I had an already healing (clotted?) small wound on the bottom of my foot, that may have come into contact with it.

Would the hiv have been killed by exposure to air by then or washed away with the rain? Or could hiv (even if it was present, which i'm pretty sure it wasn't) be able to be transmitted through an already clotted wound?



Sorry that this may sound very stupid, as I do know a fair bit about the disease now, and it dosent falll under the common category of "oops, I had unprotected sex." am I being very stupid again? I don't want to fall into a possible state of deeper paranoia than I originally was prior to this hiv test.



Any answers would be appreciated.