TGS testing station located at D.C.’s Dulles International Airport.Īs part of the TGS program, arriving international travelers volunteer to participate and provide nasal swabs that get batched into pools (5–25 swabs per pool) at the airport. The program currently targets hundreds of flights per week from select countries representing all WHO regions. Between 2022 and early 2023, the program expanded to three additional airports, Los Angeles, Seattle, and Washington, D.C.-Dulles. In November 2021, in response to the emergence of the Omicron variant, TGS quickly scaled up by adding a fourth airport, Hartsfield-Jackson in Atlanta. Kennedy in New York City, Newark Liberty, and San Francisco. In September 2021, during the Delta wave, the program began collecting samples from travelers arriving at three major U.S. national surveillance by testing travelers to detect new variants entering the country and fill gaps in global surveillance. The Traveler Genomic Surveillance program (TGS), run by the Travelers’ Health Branch at CDC in partnership with Ginkgo Bioworks and XpresCheck, plays an important role in U.S. Learn more about genomic surveillance for SARS-CoV-2. airports are visited by more than 1 billion travelers each year and can serve as the front line for public health officials to detect variants of SARS-CoV-2, the virus that causes COVID-19, in arriving international travelers. Travelers move from place to place quickly and can get and spread infectious diseases. Travelers are an important population to consider when tracking new and emerging infectious diseases. TGS testing station located at Seattle-Tacoma International Airport.
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