On May 20th, after years of negotiation, World Health Organization member states adopted the Pandemic Agreement — the first international treaty focused on pandemic prevention, preparedness, and response. Developed in response to the shortcomings revealed during the COVID-19 pandemic, the agreement emphasizes equitable access to vaccines, diagnostics, and treatments, and promotes international cooperation in disease surveillance and health system strengthening.

But will this brand-new agreement live up to its potential? And what role might the United States' decision to remain on the sidelines — and not become a party to the agreement — play in how it is adopted and implemented?

Joining me to discuss these questions and more is Alexandra Phelan, Associate Professor at the Johns Hopkins Bloomberg School of Public Health and Senior Scholar at the Johns Hopkins Center for Health Security. We begin by examining how the deficiencies in the global response to COVID-19 revealed the need for such a treaty in the first place, before having a longer conversation about what the agreement actually obliges of its signatories — and what factors will determine whether or not it works as intended.

This episode is produced in partnership with Lex International Fund, a philanthropic fund dedicated to strengthening international law to solve global challenges. It is part of a series that demonstrates the impact of Treaties on state behavior that we are calling "when treaties work"