Governor says J&J's one-dose vaccine would be "game-changer"
Clip: 01/19/2021 | 4m 6s | Video has closed captioning.
Johnson & Johnson's new, one-dose COVID-19 vaccine is near the end of phase 3 clinical trials. Experts call early trial results "very promising" and say the company could upscale production quickly.
Problems Playing Video? | Closed Captioning