Commentary On Thursday, Anthony Fauci informed the World Health Organization that the Biden administration will participate in WHO’s vaccine-sharing project. That reverses President Donald Trump’s “America First” approach. Fauci says the goal is to ensure “equitable access” to vaccines for all countries in the world, rich and poor alike. Americans scrambling to get vaccinated have a right to know how sharing doses with poor countries will affect their own ability to get vaccinated. Biden is coming under pressure from the public health community to share the vaccine supply the United States has prepurchased before all Americans who want shots receive them. The vaccine sharing project, with the acronym COVAX, raises money to buy vaccines for poor countries and asks the wealthier countries to donate actual doses. The COVAX dose-sharing principles, released Dec. 18, are causing controversy in France, England, Canada, and other countries struggling to get their own populations vaccinated. …