Prime Minister Scott Morrison has announced that Australia will receive a further 4 million Pfizer vaccine doses in a swap deal with the United Kingdom. “The plane’s on the tarmac now, it will be leaving tomorrow, and those doses will be coming over the course of the next few weeks,” Morrison told reporters in Canberra on Friday. “From Downing Street to Down Under, we are doubling down on what the Pfizer doses are here in Australia this month,” he went on to say. This comes just days after the prime minister secured a similar deal with Singapore for half a million Pfizer doses, and is in addition to the 1 million doses purchases from Poland. “I said I would leave no stone unturned. And I can tell you I’ve been turning over some stones in recent times, to ensure that we can progress the vaccination program as quickly as we possibly …