National security expert Juliette Kayyem joined Boston Public Radio Friday, where she offered a comprehensive rundown of everything going on with respect to the now multiple coronavirus vaccines.

Despite the increasingly grim number of infections heading into winter, she said that she’s staying emotionally buoyed by the prospect of a vaccine in the coming months.

“It’s always easier to go through the storm when you can see the light,” she said. "In the last week alone, the amount of progress we’ve gotten to in terms of vaccine and vaccine distribution is tremendous.”

She added, “it’s that split screen where we’re in the darkness but we can see the light, and I think it’s gonna be like that for a while.”

Juliette Kayyem is an analyst for CNN, former assistant secretary at the Department of Homeland Security and faculty chair of the homeland security program at Harvard University’s Kennedy School of Government.