Your question has been fully answered.
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You have been asking about the same things for a very long time. This is an anxiety disorder. Asking for reassurance for things you've already been advised on is part of the disorder. WE have shared with you before how HIV is transmitted. ONE more time as I know this site has rules for how many times you can ask similar questions. HIV is transmitted by Unprotected vaginal or anal sex or sharing IV needles to INJECT DRUGS. Air inactivates the virus. Now, you know that if you think about this, and apply it to all of the non risk situations you come up with that it is no risk. But your anxiety keeps you trapped. You need to work with a professional to address this mental health problem.