The NBC show tests members of the production team as part of its COVID safety protocol and they paused filming on Sunday, November 8 after several test results came back positive.
The show is following guidelines set out by their local government and their production companies. The decision was made as the team members who tested positive work closely with most of the cast and crew.
Another Chicago based drama, Chicago Med, also suspended production recently for two weeks after they had two people test positive for COVID-19.
Production shutdowns have become an ongoing issue for the television industry this year as shows try to film with restrictions amid the pandemic.
Despite all of this, Chicago Fire aired its first episode of season nine last night (November 11).
The show was recently renewed for two more seasons – meaning that we'll definitely have seasons 10 and 11. Chicago Med and Chicago PD were also renewed for three more seasons each.
In a recent statement, NBC Entertainment Chairman, Paul Telegdy said: "Dick Wolf has proven time and time again that he makes shows audiences love.
"We are delighted, excited and proud that as part of this epic deal with Wolf Entertainment, NBC's loyal audience will know that their favourite shows have a certain future for the next three years."
Chicago Fire airs every Wednesday night on NBC in the US. There are no release dates for season nine to air in the UK – however, UK fans can watch the show on Sky Witness, Universal and 5USA, with selected episodes available via NOW TV.
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