In the largest study of its kind, UNSW’s Kirby Institute conducted research with gay men in a sero-different relationship (where one partner is HIV positive and the other negative) from 2012-2016.The findings of the Opposites Attract Study reveal, nearly 17,000 acts of anal sex without a condom took place.  Not one case of HIV transference took place.We cross to the conference in Paris to speak with Professor Andrew Grulich from the Kirby Institute for this breaking news. One of the study participants, Andrew Thorpe, shares how important this research was for him as the negative partner in a sero-different relationship.Then we head back to Paris as the Executive Officer of Living Positive Victoria, Brent Allen, brings us up-to-date with the latest from the conference.