Australia signed two deals on Thursday to buy 40 million doses of Covid-19 vaccines from Novavax and 10 million from Pfizer and BioNTech as the country's virus hot spot reported zero cases for the sixth straight day, Reuters reports.

Thursday's agreements follow deals in September worth 1.7 billion Australian dollars ($1.22 billion) with AstraZeneca and CSL Ltd for a total of nearly 85 million vaccine doses. The deals with Novax, Pfizer and BioNTech are worth about 1.5 billion Australian dollars.

Federal Health Minister Greg Hunt said the government was on track to roll out the coronavirus vaccines in the country from March next year.

“That gives us the potential to make sure that every Australian has access to a vaccine during the course of 2021,” Hunt told Sky News on Thursday.