Chelsea Clinton typically maintains a low public profile. But lately, she's using various platforms to decry the lack of COVID-19 vaccines in low- and middle-income countries while wealthy nations stockpile jabs and consider third doses. She's leveraging her background in public health, as well as a lifetime of political connections, to implore world leaders to ramp up vaccine supplies so that everyone can access one. Before becoming a professor of health policy at Columbia University's Mailman School of Public Health in New York City, Clinton had a ringside view of Washington DC politics growing up beside her parents, former US president Bill Clinton and Hillary Clinton, a former senator and secretary of state. Chelsea Clinton's graduate work in international relations and public health has also served her in her position as vicec-hair of the Clinton Foundation, which aims to bolster public health and economic development in various countries. At a time when politics and economics are swaying the direction of the pandemic as much as science is, Nature spoke to Clinton about vaccines - the tools that she thinks are central to ending the COVID-19 crisis.

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