The news comes just weeks after the show's spin-off, 'Chicago Med,' also halted production due to a positive COVID-19 test.
Showrunner Derek Haas and Killmer talk to ET about the new season, welcoming a new paramedic and more.
'The Voice' will also return in October, along with a slew of other NBC favorites this fall.
The actress leaves the NBC firefighter drama after two seasons.
Showrunner Derek Haas hints to ET that big changes are ahead in the coming season.
It's about to get rowdy at 51! ET exclusively debuts a sneak peek from the season's penultimate episode.
An all-new episode airs Wednesday, April 8 at 9 p.m. ET/PT on NBC.
ET exclusively debuts a first look from Wednesday's two-hour event, featuring the return of a familiar face.
The two-hour special event kicks off Wednesday, Feb. 26 at 9 p.m. ET/PT on NBC.
Executive producer Derek Haas talks to ET about what's next after Wednesday's winter return.
Let's talk about the biggest moments from Wednesday's midseason closer.
Showrunner Derek Haas talks to ET about Gabby Dawson's exciting return in Wednesday's episode.
ET premieres a first look at the former series regular's return, airing Wednesday, Nov. 20 at 9 p.m. ET/PT on NBC.
ET exclusively debuts a first look from Wednesday's three-hour crossover event.
