Thank you for your inquiry. From what we gather from the question, you were asking about the risk of HIV transmission from protected vaginal sex. From the information given, this scenario is determined to be Low Risk (evidence of transmission occurs through these activities when certain conditions are met).
It was extremely responsible of you to use a condom, as they have been proven to be a highly effective strategy to reduce transmission of HIV when used correctly (1). However, the scenario mentioned above could meet the three components of the transmission equation (seen below) under the condition of a condom failure. Condoms fail to prevent HIV transmission due to breakage, slippage or leakage during intercourse (1). As for your flu-like symptoms, they are extremely broad for many illnesses and not necessarily indicative of HIV infection. The chances of this being from an HIV infection are extremely low especially because you practised safe sex.
Recommendation: Refer to a health care provider for HIV testing.
AIDS Vancouver Helpline/Online, Rashell
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1.) Evidence of Condoms Preventing HIV