A Global Problem Calls for Collective Action By Thomas J. Bollyky and Chad P. Bown December 29, 2020 The first human clinical trial for a COVID-19 vaccine in Soweto, South Africa, June 2020 Siphiwe Sibeko / TPX IMAGES OF THE DAY / Reuters For the second time in two decades, an international crisis looms over access to medicines. A small number of wealthy nations, including the United States, have spent billions of dollars locking up early supplies of the most promising novel coronavirus vaccines. If the United States exercises its option to buy 500 million more doses of the Pfizer and BioNTech…
