Experts are watching for a potential new COVID-19 surge in the U.S. — and wondering how long it will take to detect
FILE - Firefighters from the Marins-Pompiers of Marseille extract samples of sewage water at a retirement home in Marseille, southern France, Thursday Jan. 14, 2021, to trace concentrations of COVID-19 and the highly contagious variant that has been discovered in Britain. As coronavirus infections rise in some parts of the world, experts are watching for a potential new COVID-19 surge in the U.S. — and wondering how long it will take to detect.
For example, scientists this week touted a 6-month-old program that tests international travelers flying into four U.S. airports. Genetic testing of a sample on Dec. 14 Initially, only sick people got tested, meaning case counts missed people who had no symptoms or were unable to get swabbed. The agency also says turnaround time and quality standards have been improved in the new contracts, and that it does not expect the change will hurt its ability to find new variants.“It’s really quite a substantial reduction in our baseline surveillance and intelligence system for tracking what’s out there," said Bronwyn MacInnis, director of pathogen genomic surveillance at the Broad Institute of MIT and Harvard.
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