(Yaya DaCosta): An ER nurse with a past connection to Severide.
A patient enters the ER claiming to carry a deadly airborne virus (revealed later as Marburg) and detonates a grenade . [S3E19] I Am The Apocalypse
Hospital administrator Sharon Goodwin (S. Epatha Merkerson) places the facility under immediate quarantine, trapping members of 51 inside with a potential biohazard and an active electrical fire in the ceiling. (Yaya DaCosta): An ER nurse with a past
(Laurie Holden): A skilled trauma surgeon. Aftermath & Relationship Beats the situation spirals into chaos:
The episode begins with Firehouse 51 responding to a massive at an industrial factory. After rescuing dozens of victims suffering from respiratory distress, the team transports them to Chicago Med . While at the hospital, the situation spirals into chaos: