Separately, Shenzhen Kangtai Biological Products Co Ltd aims to have enough capacity to produce at least 100 million doses of a vaccine candidate from British partner AstraZeneca PLC by year-end.
Jordan's green light for the Pfizer vaccine follows those of Bahrain and Saudi Arabia and came six days after Britain launched the world's first mass innoculation campaign using the vaccine.
The S&P 500 opened higher by 11.81 points, or 0.32pc, at 3,675.27, while the Nasdaq Composite gained 69.57 points, or 0.56pc, to 12,447.44 at the opening bell.
Japan, with a population of 126 million, has agreements to buy a total of 290 million doses of vaccines from Pfizer Inc, AstraZeneca Plc and Moderna Inc, or enough for 145 million people.
The regulator said it had asked the Serum Institute of India, which is the local manufacturer of the AstraZeneca vaccine.
The regulator also recommended Phase I/II trials for a vaccine candidate developed by Gennova Biopharmaceuticals Ltd, based in the western Indian city of Pune.
Six vaccines, including Astra Zeneca's Covidshield and Bharat Biotech's Covaxin, are in trial stages, Federal health secretary Rajesh Bhushan told a press conference.
With two doses likely to be necessary, the contract means one and half million people in the country could be vaccinated, the government added in a statement.
In the first quarter of 2021, Oslo expects to receive a total of 2.5 million doses, covering 1.25 million people, pending approval of the vaccines from European regulators. Norway's population is 5.4 million.
Now that we've found what looks like a better efficacy we have to validate this, so we need to do an additional study.
The news comes as AstraZeneca faces questions about its success rate that some experts say could hinder its chances of getting speedy US and EU regulatory approval.
The deal will augment government efforts to lock in supplies to inoculate around two-thirds of its 108 million population, and is another boost for AstraZeneca.
The vaccine developed by Oxford University was 90% effective in preventing COVID-19 when it was administered as a half dose followed by a full dose at least one month apart, according to data from the late-stage trials in Britain and Brazil.
Trudeau also told a news conference that Ottawa would invest C$440 million ($328 million) in the COVID-19 vaccine Global Access Facility.
The AstraZeneca medication is among the leading candidates in the global race for a vaccine, now in late-stage trials in Britain, South Africa and elsewhere.