“B.1.1.7.” “B.1.351.” Before the COVID-19 pandemic, these were just a series of arbitrary letters and numbers. Now, we understand these as ‘variants of concern,’ versions of the SARS-CoV-2 virus with unique genetic codes. These variants represent just two branches on an enormous tree of the virus’ genetic diversity. As the virus transmits from person to […]

“B.1.1.7.” “B.1.351.” Before the COVID-19 pandemic, these were just a series of arbitrary letters and numbers. Now, we understand these as ‘variants of concern,’ versions of the SARS-CoV-2 virus with unique genetic codes. These variants represent just two branches on an enormous tree of the virus’ genetic diversity. As the virus transmits from person to […]