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Traveler-based genomic surveillance for early detection of new SARS-CoV-2 variants Surveillance for Early Detection of New SARS-CoV-2 Variants
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November 20, 2023
[PDF-190.97 KB]
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Description:Due to the Thanksgiving holiday, COVID Data Tracker will not update on Friday, November 24, 2023. Regular updates will resume on Monday, November 27, 2023.
Maps, charts, and data provided by CDC, updates Mondays and Fridays by 8 p.m. ET
Surveillance of international air travelers can provide early detection of new and emerging infectious diseases, including new variants of SARS-CoV-2, the virus that causes COVID-19. The Traveler-Based Genomic Surveillance Program tracks SARS-CoV-2 variants by collecting samples from international air travelers arriving from more than 25 countries at several major U.S. airports. These samples are then sent to a laboratory network for PCR testing; all positive samples undergo genomic sequencing.
The goals of this surveillance program are to:
• Provide an early warning system for detection of SARS-CoV-2 variants and follow trends over time
• Fill gaps in global genomic surveillance using travelers as sentinels
Traveler-based Genomic Surveillance is a model of pathogen detection that can be used as an early warning system for other pathogens that cause outbreaks affecting international travelers.
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