Yesterday at a bar, one girl fell off the ladder and broke the nose, spreading blood on her shirt and I decided to help her.
Five minutes later, while I was helping her to get inside the car on the way to hospital, I accidentaly touched her bleeding shirt with my hand. I immediately went to the bathroom to wash my hand. I have no idea if she is infected or not and I know that intact skin is a safe barrier against HIV but I had a very very small and superficial puncture on my hand caused by opening bottles one day before.
Is it risky if I touched the blood on the shirt right over the superficial puncture?