Welcome to the Surveillance Knowledge Repository

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Since 2008, drug overdose deaths exceeded the number of motor vehicle traffic-related deaths in Indiana and the gap continues to widen1. As the opioid crisis rages on in the United States the federal government is providing funding opportunities to states, but it often takes years for best... Read more

Content type: Abstract

Indiana utilizes the Electronic Surveillance System for the Early Notification of Community-Based Epidemics (ESSENCE) to collect and analyze data from participating hospital emergency departments. This real-time collection of health related data is used to identify disease clusters and unusual... Read more

Content type: Abstract

Presented March 27, 2018.

During this 90-minute session, Aaron Kite-Powell, M.S., from CDC and Wayne Loschen, M.S., from JHU-APL provided an overview of tips and tricks in ESSENCE and answered questions from the audience regarding ESSENCE functions, capabilities and uses.

Content type: Webinar

In January 2017, the NSSP transitioned their BioSense analytical tools to Electronic Surveillance System for Early Notification of Community-Based Epidemics (ESSENCE). The chief complaint field in BioSense 2.0 was a concatenation of the record's chief complaint, admission reason, triage notes,... Read more

Content type: Abstract

In 2015, suicide was the 8th leading cause of death in Salt Lake County, Utah, and has recently been identified as a priority public health issue. For suicide, suicide ideation and suicide attempts surveillance, Salt Lake County Health Department staff use National Violent Death Reporting System... Read more

Content type: Abstract

Held September 13, 2018.

Aaron Kite-Powell, M.S., from CDC and Wayne Loschen, M.S., from JHU-APL were available during this 60-minute session to provide updates on the ESSENCE platform as well as tips and tricks to make it more useful for members. Attendees came prepared with questions... Read more

Content type: Webinar

Standard syndrome definitions for ED visits in ESSENCE rely on chief complaints. Visits with more words in the chief complaint field are more likely to match syndrome definitions. While using ESSENCE, we observed geographic differences in chief complaint length, apparently related to differences... Read more

Content type: Abstract

Oregon Public Health Division (OPHD), in collaboration with The Johns Hopkins University Applied Physics Laboratory, implemented Oregon ESSENCE in 2011. ESSENCE is an automated, electronic syndromic surveillance system that captures emergency department data from hospitals across Oregon. While... Read more

Content type: Abstract

Free text queries are performed by ESSENCE users very often. And increasingly, those free text queries are incorporating negation terms that allow the users to find case definitions when certain terms are not present. This video attempts to explain some of the special cases where negation in... Read more

Content type: Training

Pesticide-related illness and injury is a reportable condition in Florida. In August and September 2016, aerial spraying for mosquito control was conducted in an effort to reduce the population of Aedes aegypti mosquitoes in Miami-Dade County.1 Two areas Wynwood (in August) and Miami Beach (in... Read more

Content type: Abstract

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