What is already known about this topic?

A more highly transmissible variant of SARS-CoV-2, B.1.1.7, has been detected in start highlight12end highlight U.S. states.

What is added by this report?

Modeling data indicate that B.1.1.7 has the potential to increase the U.S. pandemic trajectory in the coming months. CDC’s system for genomic surveillance and the effort to expand sequencing will increase the availability of timely U.S. genomic surveillance data.

What are the implications for public health practice?

Read more at CDC…