Yes, if there is blood on the sewing needle, it can transmit HIV. If the needle just pricked your skin, you cannot get HIV. It actually has to break the surface and get to a point where there is direct blood-to-blood contact beneath your skin. If it did not penetrate that far, I would not worry about HIV exposure.
So HIV can be transmitted via sewing needle? And would have to go deep in the skin to transmit the virus. I know the needle didn't go deep in my skin but I am not sure weather or not it actually pierced my skin.
The kids did inject drugs.
I would probably ask the doctor about this one. First of all, if the needle didn't break the skin your risk is zero. Second, were they teenagers that looked in a 'danger' category? Did they have vein tracks on their arms from shooting up? Did they openly talk about screwing each other and other guys up the but? If not, and you end up getting HIV from that, I might have a really good chance of winning the lottery.