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System Overview

What is CalREDIE? 

The California Reportable Disease Information Exchange (CalREDIE) is a PHIN*-compliant solution that the California Department of Public Health (CDPH) has implemented for electronic disease reporting and surveillance.  All notifiable communicable diseases and outbreaks in California can be reported by health care providers and laboratories through the CalREDIE system. State and local health department (LHD) staff have access to disease and laboratory reports in near real-time for disease surveillance, public health investigation, and case management activities.   

CalREDIE Vision

The vision of CalREDIE is to improve the efficiency of surveillance activities and the early detection of public health events through the collection of more complete and timely surveillance information.  CalREDIE serves as a central platform for health information reporting, and it maximizes prevention efforts by allowing public health information from physicians and laboratories to be tracked and analyzed by the Division of Communicable Disease Control (DCDC) and LHDs. State and local public health officials rely on reports of notifiable diseases to:

  • Identify outbreaks and epidemics, and intervene rapidly when appropriate

  • Evaluate risks of transmission and develop effective prevention programs

  • Facilitate epidemiologic research

  • Assist with national and international disease surveillance efforts

System Implementation

The Communicable Disease Emergency Response (CDER) Program within DCDC coordinates the CalREDIE system, which is widely utilized by LHDs, healthcare providers, and public and private laboratories within California. Public health staff within DCDC also use CalREDIE for disease reporting and surveillance processes. 

Use of CalREDIE started on January 4, 2010 with a three-month pilot implementation including CDPH and three LHDs. During this pilot, participating jurisdictions and CDPH had access to real-time disease and laboratory reporting, and receipt of notifiable conditions in California. Since the conclusion of the pilot on March 31, 2010, CDPH continued implementation of CalREDIE across LHDs, and has implemented, in phases, additional modules including Provider Portal (PP), Data Warehouse (DW) and Data Distribution Portal (DDP), and Electronic Laboratory Reporting (ELR). We continue to enhance the system and are planning for the implementation of electronic Case Reporting (eCR) starting January 2018. Today, all 61 LHDs in California use CalREDIE in some capacity, and 58 LHDs use the system for surveillance of all notifiable communicable diseases.

*PHIN – Public Health Information Network, a national initiative to increase the capacity for public health agencies to exchange data electronically, through the promotion of standards and requirements for public health information exchange.                                  ​​​

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