November 29, 2021 — Nearly two years after the emergence of the virus that causes COVID-19, a variant of the virus called Omicron is raising concerns around the world. Transmission checked in with some of Columbia Mailman School’s top experts in virology, emerging infectious diseases, epidemiology, and the global response to pandemics to answer questions about the variant, including its potential risks and what we can do to protect ourselves.

Related Items