department surveillance ) and complementary data sources (e.g., electronic laboratory reporting ) might be used to complement traditional sources of surveillance data (e.g., NNDSS) and can enhance our ability to detect changes in disease incidence.
Ms. Chang is an epidemiologist with the Surveillance Systems Branch, Division of Public Health Surveillance and Informatics, Epidemiology program Office, at the Centers for Disease Control and Prevention. Her research interests include traditional surveillance, bioterrorism syndromic surveillance, and aberration detection methods.
We thank the U.S. state and territorial health departments that conduct notifiable disease surveillance; the Bioterrorism Preparedness and Response Program, National Center for Infectious Disease, Centers for Disease Control and Prevention, for providing assistance and consultation; Ruth Ann Jajosky for comments and suggestions; and John D. Hatmaker for his technical support.
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