Health Affairs' Editor-in-Chief Alan Weil interviews Ashley M. Fox of the University at Albany, SUNY on her recent paper exploring substantial disparities in COVID-19 vaccine uptake and identifying unmet immunization demand in low- and middle-income countries. Order the "Global Lessons From COVID-19" issue of Health Affairs. Currently, more than 70 percent of our content is freely available - and we'd like to keep it that way. With your support, we can continue to keep our digital publication Forefront and podcasts free for everyone.