I was walking on a very popular spot in Toronto, Nathan Phillips Square, when I stepped on Hypodermic Syringe, straight on the walk way around 10 pm at night. It couldnt have been old because it was in plain sight and would most definitely have been removed had it been there for a few hours. Naturally I'm very concerned about my HIV acquisition risk, 10 days later I had a break out of acne like flat bumps on my chest (disappeared after a day) and a mild sore throat. What is my HIV risk?