Using GIS-based density maps of HIV surveillance data to identify previously unrecognized geographic foci of HIV burden in an urban epidemic.

• Based in part on these findings, NYC DOHMH began funding new HIV riskreduction interventions that focus on Latino MSM in Queens, with an emphasis on Jackson Heights Density surface map* of residences of New Yorkers newlydiagnosed with HIV infection in 2007 with West Queens neighborhood detail map Density surface map* of residences of New Yorkers newlydiagnosed with HIV infection in 2007 2007 New York City HIV diagnosis rates per 100,000 by United Hospital Fund (UHF) neighborhood, superimposed with density surface map* of residences of New Yorkers newly-diagnosed with HIV infection in 2007 (top 3 deciles only)