“Our first priority remains vaccinating the U.S. population,” Psaki said at the daily briefing. But she added that “ensuring our neighbors can contain the virus is a mission critical step, is mission critical to ending the pandemic.”

AstraZeneca’s vaccine has not been authorized for use in the U.S., but the company is expected to share results of its late-stage U.S. study and apply for clearance in the coming weeks. The World Health Organization, European regulators and dozens of countries have OK’d the shots based on studies done in the U.K. and elsewhere.

Read more