Why Didn’t the U.S. Detect Omicron Cases Sooner?
https://www.nytimes.com/2021/12/02/health/omicron-variant-genetic-surveillance.html
Genomic surveillance has improved enormously in recent months, but the system has built-in delays, and blind spots remain.
Why Didn’t the U.S. Detect Omicron Cases Sooner?
Dec 2, 2021, 10:27pm UTC
https://www.nytimes.com/2021/12/02/health/omicron-variant-genetic-surveillance.html
>Genomic surveillance has improved enormously in recent months, but the system has built-in delays, and blind spots remain.