Your question has been answered previously that you had no risk for your exposure. And your question here has also been answered.
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No idea what you are talking about. That certainly is not a rule in countries that study and are educated on HIV. Especially for someone such as yourself who had no risk. I actually think you have it wrong and maybe an isolated incident happened at a specific hospital. And that they may screen for infectious diseases in blood but sincerely doubt they would ever require only SEX FREE blood donation. Your anxiety is running away with you.