Louisiana Early Event Detection System (LEEDS)


The goal of syndromic surveillance is to rapidly detect early warning signs of disease trends that might impact the health of the public by monitoring for increases in the occurrence of specific symptoms and syndromes. By utilizing this type of pre-diagnostic data,  syndromic surveillance enables earlier detection of disease trends and outbreaks and, therefore, more rapid interventions to interrupt the spread of illness in the community.  

*** Louisiana accepts syndromic surveillance Data from Emergency Departments and Urgent Care Facilities only. ***



 Louisiana Early Event Detection System (LEEDS) is a web-based reporting system that automatically processes hospital Emergency Department and Urgent Care  data to identify visits indicative of specific syndromes tracked by the Louisiana Office of Public Health (OPH).

LEEDS tracks numerous syndromes and is used by Infectious Disease Epidemiology for important public health serveillance activities including:

  • Foodborne, waterborne, and other gastrointestinal illness outbreak detection and surveillance
  • Influenza-like illness surveillance
  • Asthma surveillance
  • Upper and lower respiratory tract infection surveillance
  • Health effects due to air pollution - marsh fires, chemical disasters, etc.
  • Generic outbreak detection
      - Skin and soft tissue infections (SSTI)
      - Rashes - detection of vaccine-preventable diseases
  • Bioterrorism agents surveillance
      - Botulism
      - Ricin
      - Viral hemorrhagic fevers
      - Pneumonias- Anthrax, Plague, etc.
  • Zoonotic disease surveillance
  • Drug and alcohol abuse surveillance
  • Special pathogens surveillance
  • Special event surveillance



LEEDS users can easily view reports online at any time. These reports can be viewed at the hospital, regional or state level. The six syndromes presented in these reports are:

  • Asthma
  • Gastroenteritis
  • Influenza-like illness
  • Skin and soft tissue infections
  • Upper respiratory tract infections
  • Lower respiratory tract infections

Reports include tables and graphs that present weekly summaries of:

  • counts of Emergency Department and Urgent Care  visits reported.
  • counts of each type of syndrome, and
  • percentages of Emergency Department  and Urgent Care visits attributable to each syndrome. 

See sample report below:

PH-1 Emergency Department Surveillance for Specified Syndromes


PH-1 Emergency Department Surveillance for Specified Syndromes 
Statewide: Hospital Emergency Department (ED) Syndromic Surveillance
Percent of Total ED Visits Indicative of ILI -2016

 (Compiled by the LAOPH Infectious Disease Epidemiology Section) 




  • Syndromic surveillance enables earlier detection and awareness of outbreaks or disease trends of public health significance.
  • LEEDS enables ongoing monitoring of syndromes of public health importance.
  • LEEDS detects seasonal disease trends, such as influenza during winter months.
  • LEEDS provides situational awareness during any identified cluster of cases or outbreak, during natural or man-made emergencies, or during high-profile events.
  • Submission of electronic syndromic surveillance data to public health agencies is a meaningful use objective and helps hospitals earn incentive payments.
  • LEEDS has the potential to also track events such as hospital acquired infections, injuries and infections during hurricanes, environmental exposures, poisonings, bioterrorism events, toxic product exposures, and drug abuse trends.



LEEDS is currently accepting data only from hospital Emergency Departments and Urgent Care Facilities. Participating facilities submit daily emergency department data files to LEEDS using secure file transfer protocol (sFTP).  The required data format follows PHIN messaging standards. Users are issued password-protected web-based accounts to access reports online at their convenience.

Hospital Emergency Departments  and Urgent Care Facilities can register their intent to participate here.

For further information on how to participate, please view  LEEDS Syndromic Surveillance in Louisiana, or contact:

Syndromic Surveillance Coordinator: Megan Jespersen, MPH
1450 Poydras Street, Ste. 1641
New Orleans, LA 70112
Telephone: (504) 568-8309
 Fax: (504) 568-8290 
 Email: megan.jespersen@la.gov