Australia has approved the highly effective Moderna coronavirus jab for children aged 12 to 17.
One million doses will arrive this month after the American vaccine was given approval by the Therapeutic Goods Administration.
The vaccine requires two doses 28 days apart and latest data from the US shows it is 93 per cent effective against Covid-19 infection, 98 per cent effective against severe disease and 100 per cent effective against death.
Australia has approved the Modern coronavirus vaccine. Pictured: Pfizer vaccinations for HSC students in Sydney on Monday
Australian Prime Minister Scott Morrison (right with TGA boss John Skerrit) speaks to the media during a press conference at Parliament House in Canberra
The jab - which has been approved for over 18s - uses the same mRNA technology as the Pfizer vaccine and is not linked to the rare blood clots caused by the AstraZeneca vaccine.
Professor John Skerritt, head of the TGA, said the decision was made to approve the jab in adults only - rather than wait for more data on teenagers - to help speed up the rollout.
'We made the decision in conjunction with the company to do the adults first because that enabled us to reach a decision earlier which can then start the whole process of access to the vaccine in Australia earlier,' he said.
'The data on the teenagers does look good and we should be able to make a decision again convening the expert advisory committee within the next three or four weeks.'
Professor Skerritt described the jab as 'really exciting' because of its high efficacy.
The Moderna jab has been used widely in the UK, Europe and the US where 140million doses have been given.
One million doses are expected to arrive in Australia in late September and three million in each of October, November and December.
A woman receives the AstraZeneca vaccine at the new drive-through centre in Melbourne on Monday (pictured)
Australia's agreement with Moderna is for 10million doses of their current vaccine in 2021 and 15million doses of booster or variant-specific versions of the vaccine in 2022.
'This means we have an additional 25 million doses of Moderna to add to the 125 million Pfizer doses and 53 million AstraZeneca doses we've already started rolling out,' Prime Minister Scott Morrison said.
'We will have 10 million of the Moderna doses arriving before the end of this year. The first one million doses is on track to arrive