President Joe Biden will announce plans to contribute up to $4 billion to a global Covid-19 vaccine program aimed at assisting developing countries, a move officials argue will bolster American national security interests by helping control the pandemic globally.

While millions of Americans are still waiting to get access to the vaccine, administration officials said that contributing the funds, which were specifically appropriated by Congress in December for foreign pandemic assistance, will help Americans by reducing the risk of further mutations that could extend the pandemic.