OHTN board chair Tony DiPede opening the conference Before Ron Stall, a Pittsburgh academic, promoted the term “syndemics”, it was hardly on the HIV health sector’s radar. Now it most definitely is, particularly on that of those who work in gay men’s sexual health. Its latter day influence is remarkable. Thus in 2016 we see prominent HIV conferences like this week's in Toronto, held in downtown’s venerable King Edward Hotel, entirely devoted to it.  So to backtrack, what are synde