I was volunteering to a small town, and I was assigned to get the blood sugar of people (15 approximately) through pricking their fingers using glucometer without used of gloves. I haven't noticed if i touched any blood from them as I a was careful enough. However, when I tried doing it to my friend, when I pricked her finger, the fresh blood dripped to my thumb and I immediately wiped it and put alcohol on it. My question is, is it possible to acquire HIV in this incidence as well as the others whom I pricked fingers? As I have posted last time, I think I have OCD regarding HIV now.