Since the first emergence of COVID-19 in late 2019, over 55 million cases have been reported worldwide. While countries around the world have imposed lockdowns and other measures to attempt to stem the tide, without a vaccine, the pandemic is poised to proliferate. Vaccines typically take years to research, test, and manufacture, but governments and pharmaceutical companies are racing to expedite development in hopes of making a vaccine widely available by early 2021. Professor Dorit Reiss of UC Hastings Law explains how vaccines are typically developed, what’s been different for the COVID-19 vaccine, and the potential dangers of rushing to market. She then explores the challenge of vaccinating large populations and what the government and private employers can do to mandate or encourage vaccinations.