R. Hogg, D. Moore, S. Kanters, R. Gustafson, T. Trussler, R. Marchand, P. Banks, M. Kwag, M. Compton, A. Schilder, M. McGuire, S. Ogunnalike-Cooke, G. Jayaraman, M. Perrin, T. Wong, C.P. Archibald, W. Michelow, M. Gilbert and the ManCount Study Team. Undiagnosed HIV infection among men who have sex with men in Vancouver, Canada. Poster presentation at the 18th International AIDS Conference, Vienna, Austria, July 18-23, 2010. Abstract no. WEPE0328.