Why Hasn’t the U.S. Found More Omicron Cases?

Why Hasn’t the U.S. Found More Omicron Cases?

2 years ago
Anonymous $FNmJglWnLu

https://www.nytimes.com/2021/12/02/health/coronavirus-omicron-genetic-surveillance.html

Genomic surveillance has improved enormously in recent months, but the system has built-in delays, and blind spots remain.