Yale SARS-CoV-2 Genomic Surveillance Initiative

We’re sequencing genomes of SARS-CoV-2, the virus that causes COVID-19, in order to learn more about how it’s spreading in Connecticut.

How does that work? →


Genomes published
(122 from CT)



The Latest


Play around with our most up-to-date map & evolutionary tree on our Nextstrain page


Labs around the country are teaming up to sequence SARS-CoV-2, and we’re one of them

The SARS-CoV-2 Sequencing for Public Health Emergency Response, Epidemiology, and Surveillance (SPHERES) is a CDC-led team that includes federal & state researchers, non-profit laboratories, academic researchers, and corporations. Learn more →



Our work was recently featured in an article on FiveThirtyEight about using genomics to track pathogens.

Read the article Read the paper in Cell

Principal Investigator Nathan Grubaugh and PhD student Mary Petrone explain why you shouldn’t worry when this virus mutates

Read the op-ed in CNN Read the commentary in Nature