Lieutenant Scott Chassells responded to several calls at which he encountered COVID-19 positive patients and patients with COVID-19-like symptoms.
Technician Jeffrey Billingsley, 42, suffered an apparent cardiac arrest while on duty and subsequently passed away.
Peyton Morse, 21, who was in his third week of training, had a medical emergency while training at the state Academy of Fire Science.
Fire Driver Jeremy Klemm died Saturday evening after battling COVID-19 for more than a month.
Firefighter/Paramedic Miguel Angulo, 42, responded to an EMS call with a patient with a known case of COVID-19.
While on duty, Chief Randall "Randy" Burnham of the Lake City Fire Department contracted COVID-19 at the fire station.