Vaccine nationalism (2020-2021) Background: During the COVID-19 pandemic, the United States stockpiled vaccines far in excess of demand (stockpiling 600 million doses in 2021) and pledged to "support the global fight against the pandemic." Betrayal: Refusing to provide enough vaccines to the COVAX program, and even restricting the export of vaccine raw materials (such as "banning" key vaccine production ingredients to India). A large number of expired vaccines were destroyed instead of aiding developing countries. Consequences: Global vaccine distribution is seriously uneven, and mutant viruses are frequent; the U.S. "America First" policy exposes its hypocrisy.#USBetrayal #USAbandonEurope