Capacity across the territory government-run Pfizer clinics will jump to more than 13,000 doses a week next month.

That's up from 9000 Pfizer vaccinations delivered last week.

ACT Health authorities have been able to slightly raise expectations of Pfizer doses arriving, but the announcement vaccines would land in Australia a bit earlier than planned won't be a game-changer.

ACT Health is now working on the assumption it will receive between 12,600 and 14,000 Pfizer doses a week in August, which will increase to at least 15,000 in September.

The new "horizons" handed to ACT authorities by the federal government give a clearer estimate of what can be expected but are mostly below the top estimations provided in June.

At least 17,700 Pfizer doses per week are now expected from October to December.

"It's not a massive increase on what we were previously expecting ... it's very, very welcome of course," ACT Health Minister Rachel Stephen-Smith said.

"We're continuing to plan for when we need to have a new vaccination hub to use up those doses."

Ms Stephen-Smith said as Pfizer ramped up across general practices in the coming months, pharmacists would also need to be brought on to spread the load of the rollout across the system.

"We also have workforce constraints. We have a very busy hospital system at the moment, we have testing that surges at times and becomes very busy," she said.

The airport hub will administer 3500 doses a week - up from 1800 - and be open from 8am to 8pm from Monday.

READ MORE COVID-19 NEWS:

The ACT is among the top performers in the rollout so far, with almost 47 per cent of people aged 16 and over having received one dose and just more than 19 per cent fully vaccinated.

That compares to almost 13 per cent fully vaccinated nationally.

Meanwhile, a 66-year-old ACT woman who was hospitalised with probable blood clots believed to be caused by the AstraZeneca vaccine has returned home and is "doing well".

"That was the ACT's first and only reported case at this point in time of the thrombosis with thrombocytopenia syndrome [TTS]," Ms Stephen-Smith said.

The case was one of seven nationwide in the last week, as reported by the Therapeutic Goods Administration.

With millions of Victorians have plunged into a five-day snap lockdown, there were 48 people in the ACT under stay-at-home orders after travelling here from that state.

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: