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.

However he said it was not possible to provide details on how many workers had already received their first dose of the Pfizer vaccine or how many workers were booked in to receive the jab.

"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."

READ MORE:

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.

ACT Health expects about 170 passengers on board, returning from countries including Vietnam, Thailand, Indonesia and Portugal.

Our journalists work hard to provide local, up-to-date news to the community. This is how you can continue to access our trusted content: