End-to-End Disease Surveillance

Solutions

Monday, August 31, 2009

Johns Hopkins University Applied Physics Laboratory

Joseph Skora, Richard Seagraves, Richard Wojcik,

Raj Ashar, Sheri Lewis

U.S. Naval Medical Research Center Detachment, Lima, Peru Gianni Nakandakare, Joan Neyra, Delphis Vera,

Ricardo Hora, Joel Montgomery

U.S. Department of Defense

Global Emerging Infections Surveillance and Response System

David Blazes

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Knowledge Repository

Outbreak Scenarios

Pandemic Influenza Policy Model

Predictive Modeling HL7, SFTP, Email Web Forms

Digital logbook

Desktop ESSENCE

Enterprise ESSENCE

Electronic Surveillance System for the Early Notification of Community-based Epidemics

IVR - Phone

InfoShare

Data Export

Data Acquisition Modeling & Simulation

Communications Analysis & Visualization

OpenESSENCE

SMS

Future

OpenESSENCE Part of the ESSENCE Suite Tools

Suite for Automated

Global

Electronic

bioSurveillance

(SAGES)

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OpenESSENCE Integration with Disease Surveillance Data

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• OpenESSENCE functionality is derived from APL’s Enterprise

ESSENCE which is currently operational in both the United States

and Overseas for the U.S. DoD and U.S. civilian health departments.

• Addresses the need for analysis tools that are

– Open source – Internationalized

– Self administrating – Extensible

– Low cost

• Initially focused on the the requirements of the U.S. Naval Medical

Research Center Detachment (NMRCD) in Lima, Peru

• Installing and testing in Peru in Aug/Sep 09

– integrating data collected with the Elastix IVR call tree

designed and developed by NMRCD

OpenESSENCE Overview

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• Design

– Incorporates APL and NMRCD’s experience in Biosurveillance and IT systems

– Deployable using only open source software components

– To be released as open source after initial version is completed

– Security, encryption, and internationalization support build into core system

– Industry standard technologies (e.g. Java EE, Apache Tomcat, Spring, MySQL)

• Extensibility

– Dynamic, flexible design

• Deploys with requiring programming and development

• Configuration and data definition drive functionality and interface

• Database independence

– Plug-in API for detection algorithms

• Open source and proprietary algorithms

OpenESSENCE Design and Extensibility

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• Configurable database and data sources

• Extract, transform, and load (ETL) synchronization loads surveillance

data from any JDBC compatible database

• Language internationalization of all user interface components

• Time series visualization with anomaly detection and image export

• Drill down to data details view (individual records)

• Data details can be exported to Excel/CSV for analysis in other tools

• Future development driven by feedback from sponsor and users

OpenESSENCE Features of Initial Release

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DEMONSTRATION

OpenESSENCE Demonstration

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• Modular, component based application design

– Improved separation of concerns and testability

– Repurposing and reuse is easier and more likely

• Data driven system structure

– Allows for dynamic extension and reconfiguration

– Eliminates need to redevelop or rebuild application to incorporate

adjustments or enhancements

• Open source technology stack

– Various libraries and server applications are stable

– Software deployment costs are based on days of configuration instead of

months of development

OpenESSENCE Design Goals Achieved So Far

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• Multi-national, multi-lingual teams can be quite effective despite additional obstacles they face

– Communication requires special emphasis and clarity

– A common language is needed between some members of each team

• Open source tools provide unique value but require an ongoing intellectual investment to maximize their return

– Performance and security gains in Apache Tomcat eliminated the need for Apache HTTP server

– Projects with developer/user communities can change and grow quickly

• Keeping up to date is time consuming but necessary

• It is hard to scope and scale development for unknown data sets

• Iterative design and development reduces rework

OpenESSENCE Lessons Learned

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• Integrate web based data entry

• Administrative support

– User administration

– Saved queries and query linking

– System configuration and customization

• Enhance analysis and visualizations with pie and bar charts

• Geographic Information System (GIS) mapping integration

• Non-database sources of data: text, csv, and Excel

• Installation in additional countries

• Batch detection processing and Alert List integration

• Support H1N1 efforts

OpenESSENCE Future Directions

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• This work was funded by the Armed Forces Health Surveillance Center (AFHSC) in

conjunction with the U.S. Naval Medical Research Center Detachment (NMRCD) in Lima,

Peru.

• The team:

OpenESSENCE Acknowledgements

JHU APL

Raj Ashar

Angela Brown Larry Frank

Gabe Gorelick-Feldman

Sheri Lewis

Wayne Loschen

Zarna Mistry Adjoa Poku

Joe Skora

Rich Seagraves

Rich Wojcik

NMRCD

Christian Atavillos

Ricardo Hora Joel Montgomery

Gianni Nakadakare

Joan Neyra

Augusto Tsuha

Delphis Vera

AFHSC / GEIS

David Blazes

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