The study showed that for those above 80, a single dose of either vaccine is more than 80 per cent effective at preventing hospitalisation around three to four weeks after the jab.
The FDA said the vaccine, which is shipped in frozen vials, now can be transported and stored for up to two weeks at the temperatures of freezers commonly found in pharmacies.
The study will evaluate up to 144 Phase 1 participants in two age cohorts, 18-55 and 65-85 years of age.
The good news came as Ghana became the first country to receive shots under the global Covax scheme, paving the way for poorer nations to catch up with wealthier parts of the world.
About 650,000 people in Scotland received the Pfizer vaccine during the study period and 490,000 had the AstraZeneca shot, according to the Usher Institute.
The US and German companies said in a statement that the doses come on top of the 300 million initially ordered.
North Korean leader Kim Jong Un has repeatedly insisted that the country has had no coronavirus cases, although outside experts doubt those assertions.
Prime Minister Scott Morrison will also be among the first to receive a dose in a bid to raise public confidence in the program.
The trial announced Saturday seeks to recruit 300 volunteers between the ages of 6 and 17, with up to 240 receiving the COVID-19 vaccine and the remainder a control meningitis vaccine.
Pfizer suggests COVID vaccine as 'perfect gift' for valentine's day in parody ad on Jimmy Kimmel show
The advertisement that is now viral shows a man ‘proposing' to his partner with a dose of the COVID-19 vaccine.
Pfizer will continue to engage with the authority and resubmit its approval request with additional information as it becomes available in the near future, the statement said.
Australia's Therapeutic Goods Administration said in a statement Tuesday that it received reports on January 14 of about 30 deaths in more than 40,000 elderly people vaccinated with Pfizer.
Pfizer's fourth-quarter revenues included $154 million in sales of the Covid-19 vaccine.
The drugmaker expects roughly $15 billion in revenue this year from the vaccine, which won emergency clearance in mid-December in the US regulators and continues to rack up approvals across the globe.
The EMA concluded that safety data collected on the Pfizer vaccine are “consistent with the known safety profile of the vaccine” and noted that severe allergic reactions are a known, rare side effect.