The team identifies as the primary suspect after Jay Halstead spots him on surveillance footage. Seldon, a CDC researcher, felt his work on antibiotic-resistant bacteria was ignored by the medical board and major corporations. He plans to release a massive dose of the bacteria at a city parade to prove his research's "value". Upton’s Emotional Conflict Chicago PD season 7, episode 4 recap: Infection, Part 3
The episode centers on identifying and stopping the rogue scientist behind the attack. The Manhunt [S7E4] Infection, Part III
"Infection, Part III" concludes a terrifying bioterrorism arc where a man-made, flesh-eating bacteria is weaponized against the city. While Chicago Fire (Part I) and Chicago Med (Part II) established the outbreak and medical crisis, this episode follows the Intelligence Unit’s desperate manhunt for the culprit. October 16, 2019 Director: Eriq La Salle Writers: Gwen Sigan, Dick Wolf, and Derek Haas 🔍 Major Plot Points The team identifies as the primary suspect after