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Lessons Learned from CDC’s Global COVID-19 Early Warning and Response Surveillance System
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Lessons Learned from CDC’s Global COVID-19 Early Warning and Response Surveillance System
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Journal Article
Lessons Learned from CDC’s Global COVID-19 Early Warning and Response Surveillance System
2022
Overview
Early warning and response surveillance (EWARS) systems were widely used during the early COVID-19 response. Evaluating the effectiveness of EWARS systems is critical to ensuring global health security. We describe the Centers for Disease Control and Prevention (CDC) global COVID-19 EWARS (CDC EWARS) system and the resources CDC used to gather, manage, and analyze publicly available data during the prepandemic period. We evaluated data quality and validity by measuring reporting completeness and compared these with data from Johns Hopkins University, the European Centre for Disease Prevention and Control, and indicator-based data from the World Health Organization. CDC EWARS was integral in guiding CDC's early COVID-19 response but was labor-intensive and became less informative as case-level data decreased and the pandemic evolved. However, CDC EWARS data were similar to those reported by other organizations, confirming the validity of each system and suggesting collaboration could improve EWARS systems during future pandemics.
Publisher
Centers for Disease Control and Prevention
Subject
Centers for Disease Control and Prevention, U.S
/ COVID-19
/ COVID-19 - prevention & control
/ Humans
/ Lessons Learned from CDC’s Global COVID-19 Early Warning and Response Surveillance System
/ Pandemics - prevention & control
/ SARS
/ Severe acute respiratory syndrome coronavirus 2
/ Surveillance, Information, and Laboratory Systems
