Yes, transmission via mucous membranes is possible. But not with the extremely scant amount of virus that could possibly be present on your hands given the situation you describe. As I said above, if such mucous membrane transmission could occur with any frequency, non-sexual household transmission would occur at least once in a while -- but it has never been reported, even once.
You're fine. Don't let this play on your mind. But if you just can't get beyond it, feel free to get tested -- that is, if it will take a negative test to let you stop worrying. (And no, this is not "code" that means I really think there was some risk. There was not.)
Thanks for your quick reply.
My understanding was that HIV can be transmitted through intact mucous membranes so I am a bit confused (although relieved) when you wrote 'Relax'. I guess I do not understand the subtleties of transmission.
I guess I'm just a worried Mom!
Thanks again for your time,
Stephanie
Relax. If HIV could be transmitted in the ways you imagine, AIDS would be a hundred times more common than it is and it wouldn't be classified as an STD. For example, HIV is never, ever transmitted between household members who share kitchens, bathrooms, etc for years on end with HIV infected persons. Anyway, the likelihood that any particular person in the US or an industrialized country (i.e., the cashier) has HIV is extremely low, less than 1 chance in 1,000. Finally, it is not possible that there was a significant amount of blood on your hands that you could not see.
Truly, don't worry about this. There simply is no risk and you definitely do not need HIV testing. But if it will make you feel better, it's fine with me if you get tested for peace of mind. I don't know what ICMA means, but all HIV antibody tests on the market are equally accurate.
Regards-- HHH, MD