He says there is the possibility of one booster jab delivering a "lifetime dose".

"We may not need boosters every year," he said on Tuesday.

"That's the talk in the medical profession."

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On Wednesday, the Therapeutic Goods Administration (TGA) gave provisional approval for Australians aged 18 years and over to have a booster dose of the Pfizer vaccine.

It recommends getting the booster jab "at least six months after" receiving the second dose of any COVID-19 vaccine registered for use in Australia.

The federal government is waiting for final advice on the rollout of booster doses from the Australian Technical Advisory Group on Immunisation (ATAGI).

Federal Health Minister Greg Hunt is hoping it will occur "no later than November 8", with aged and disability care residents a priority.

Australians who are severely immunocompromised have been able to receive a booster dose since October 11.

The federal government has secured more than 151 million Pfizer, Novavax and Moderna vaccines for "supply into the future".

The TGA announcement has been welcomed by the Royal Australian College of General Practitioners (RACGP).

"It makes perfect sense for general practice to be front and centre in delivering booster doses," president Dr Karen Price said.

"We have delivered more than 19 million COVID-19 vaccines and truly remain the backbone of this rollout.

"We know that the strength of immunity afforded by the COVID-19 vaccines does wane over time.

"So, ensuring that our immunity to COVID-19 is topped up by a booster dose will make a real difference in keeping people as safe as possible from harm."

Dr Price is urging people to be patient.

"Pending the final advice of ATAGI and a formal decision made by the Government, the booster shots should be available soon, and in the meantime, please remain calm," she said.

"People will have their booster dose at least six months after their second vaccine dose.

"So, unless you were at the front of the queue and received your second vaccine in the first half of 2021, you will not be receiving your booster dose right away.

Dubbo's vaccination rates haver soared since the virus took hold of the city in August.

Mr Saunders said Dubbo's response had been "incredible".

"We now are at over 95 per cent first dose and over 90 per cent second dose," he said.

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