A scratch wont get you infected. I would think you would know this since you work around AIDS patients.
Response from Dr. Frascino
Hello,
What do I consider your risk to be? That's easy nonexistent.
What would I recommend? That's easy as well. Stop taking Combivir (not "cobivir," by the way). You have no risk of HIV transmission, but you do have a risk of drug side effects and toxicities from Combivir. Finally, I agree with the infectious diseases team ("nothing to worry about"). I also agree with their recommendation that you should not take PEP. You are not taking a "precaution;" you are taking a risk!
We really do know what we are talking about, and whoever prescribed the PEP for you should not have done so.
Dr. Bob
I did not remember that i notice any blood in his hand but am not sure