To quote the press release:
Investigation into two suspect bacterial meningitis cases has found a possible link between attendance at the punk rock concert at WOW Hall, on September 20, 2003 (the Saturday of the Eugene Celebration).
If you ever been to a concert at WOW Hall, they are crowded, smelly, and nasty. The hall is poorly ventilated, and I’m amazed something hasn’t shown up there before. I went to a Cherry Poppin’ Daddies concert there (their last appearance at the hall), and was, honestly, wondering about the safety of that building.