Determinants of influenza vaccination among undocumented immigrant populations in underserved areas of New York City Shannon Blaney, Micaela H. Coady, Sandro Galea, Danielle C. Ompad, Katherine Glidden, Sarah Sisco, David Vlahov Center for Urban Epidemiologic Studies The New York Academy of Medicine Copyright 2007, Shannon Blaney, sblaney@nyam.org