Emergent Biosolutions CEO on the vaccine factory mix-up

Emergent Biosolutions CEO Robert Kramer joins CNBC's Meg Tirrell to discuss the mix up between the ingredients of the AstraZeneca vaccine and the J&J vaccine. However, the mistake was caught early on and the vials were not been released to the public. He joins 'Closing Bell' to discuss.
Thu, Apr 1 20214:50 PM EDT