Monday night's government-chartered repatriation flight from Singapore will be the first flight to arrive since hotel quarantine workers were offered COVID-19 vaccines.
ACT Health said about 200 staff from ACT and federal government agencies and private organisations would be involved in the quarantine operation.
An ACT Health spokesman said all front-line workers have been offered vaccinations during phase 1a of the vaccine rollout.
"Vaccinations have only been available for one week ... it has not been possible for all of the front-line workers in this operation to receive their first dose prior to the government-facilitated flight's arrival," the spokesman said.
"Because the Pfizer vaccination requires two doses, three weeks apart, no one is yet fully vaccinated."
The spokesman said that under the Safeguarding Canberrans program, workers will be asked about their vaccination status and working arrangements would be adjusted to ensure their safety.
"This includes rostering to areas where they will not come into contact with people quarantining from overseas," the spokesman said.
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