First of all, you asked the same question a few days ago and got an answer. Second of all, why in the world is your test being sent to the US???
No need to worry. Blood products now-a-days are routinely screened for potential infectious agents, especially HIV. The early days of the epidemic in the 80's may have had some issues of contaminated blood, but today....I wouldn't even worry about it. You're going to be fine.