Breadcrumb Home News April 04, 2003 12:00 AM An early warning system for diseases in New York New York Times Tweet Share Share Email More Print Letter to the Editor Send us a letter Have an opinion about this story? Click here to submit a Letter to the Editor, and we may publish it in print. Recommended for You Next Up podcast: You said What? - Transcript Next Up podcast: Are You Ready to Lead a Hospital? - Transcript Sponsored Content View the discussion thread.