National Syndromic Surveillance Program (NSSP)

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Public health surveillance through collaboration

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National Notifiable Diseases Surveillance System

CDC Surveillance Strategy

Improving CDC Activities and Capabilities in Public Health Surveillance

Announcements
How to Use Wildcards
Free-text Coding Part 1. Wildcards
We’re pleased to announce a series of newsletter articles on free-text coding in NSSP–ESSENCE.

Syndromic surveillance depends heavily on sharing methods. Once practitioners understand the coding language, they can repurpose queries to suit unique needs. Part one of this series introduces wildcards, a character that can represent a search for anything, everything, or nothing—and all at the same time. Intrigued? See the May issue of NSSP Update to learn how wildcards affect queries.

Page last reviewed: April 30, 2019