Poz’s Trenton Straube has published the first interview with the 44-year-old Canadian gay man known as “Joe,” who is the first recorded person to contract HIV while using PrEP with evidence of strict adherence.

His  doctor  said, “Because we’ve always suspected that this potentially could happen, and now we’ve shown that it can happen, people need this information to make decisions about their sexual health that feel right for them,” Dr. David Knox told me by phone yesterday. “The more information, the better. And that’s the bottom line.”

Thanks to the blood tests he was given that were able to point to the relative time of HIV transmission, Joe says that he knows the guy he contracted it from:

He’s in a relationship and “discreet.” We met on bbrt [a bareback community], and he says he’s negative. I prefer to be with people who are positive and know it and are on meds—I’m on PrEP, you’re undetectable, the chances of transmission are like negative 10 percent—but I broke my rule with this guy. So it was with him, I think—it was a bit of a busy period. I reached out to him and he says, “Well, I’m not worried, I’m OK. But I’ll go see a doctor.” And I checked in with him again: “Have you gone? What are the results?” “Oh I’m really busy and haven’t had a chance.” I checked in again. “Oh, I’m out of town on work.” Checked again, and he stopped replying to me. To be honest, I gave up. I don’t need to be vindicated or have him say I’m sorry or whatever. I just wanted to let him know. It’s being socially responsible.