To contain the coronavirus, the U.S. needs to be able test a lot of people. But we’re facing a shortage of a key ingredient: the swab. Here’s why these swabs are so hard to source.
(Image credit: David Zalubowski/David Zalubowski/AP)
To contain the coronavirus, the U.S. needs to be able test a lot of people. But we’re facing a shortage of a key ingredient: the swab. Here’s why these swabs are so hard to source.
(Image credit: David Zalubowski/David Zalubowski/AP)