In most contexts, it’s perfectly acceptable to use “approval” and “authorization” interchangeably. But not at the Food and Drug Administration (FDA), and definitely not when it comes to COVID-19 vaccines. If the topic comes up at your Zoom holiday party, here’s a cheat sheet for the specific uses of these similar terms.
Approval — No COVID-19 vaccines have been approved. Approval means the FDA has officially decided that a product is safe and effective for its designated use. The process for approval involves rigorous reviews of all available data on the product and can take several months.
Authorization — To speed things up in an emergency like a pandemic, the FDA can grant an Emergency Use Authorization (EUA). An EUA, as its name...
