The United States will provide an "arsenal" of vaccines for the world and will donate 75% of its surplus doses through an international initiative for countries in need, the Biden administration announced Thursday. The administration has pledged to donate at least 80 million doses by month's end. Doses shared through COVAX – a worldwide initiative aimed at equitable access – will prioritize Latin America and the Caribbean, South and Southeast Asia, and Africa, in coordination with the African Union, national security adviser Jake Sullivan said at a briefing Thursday. The other 25% will go for immediate needs and to help tamp down surges around the world.