The study suggests that a single dose of either of the two vaccines now approved for use in the U.K.is more than 80 percent effective at preventing hospitalization, around three to four weeks after the jab.
Health Canada last week authorized its use for all adult Canadians but the National Advisory Committee on Immunization recommended Tuesday that it not be administered to people 65 years of age or older.
As of Saturday, 4.55 million people had received at least one shot of an AstraZeneca, Pfizer-BioNTech or Moderna vaccine.
British Columbia's Provincial Health Officer, Dr. Bonnie Henry, said essential workers including first responders, teachers and those who work in poultry factories where outbreaks have occurred may be offered the Oxford-AstraZeneca vaccine sooner, depending on availability.
South Korean authorities said on Wednesday (March 3) they are investigating the deaths of two people after a media report said the pair - both with pre-existing conditions - died within days of receiving AstraZeneca's Covid-19 vaccine.
"If the AstraZeneca vaccine will prevent you from getting really sick that's still a win for you, " Colijn said.
U.K. Health Secretary Matt Hancock unveiled what he said were "very strong" findings at a press conference in London today, where he claimed a "vaccine gap" between older people who had been immunized, and younger patients yet to receive a vaccine, was emerging. "Next week, we are set to receive more than 900,000 vaccines being Pfizer and Moderna vaccines".
"Maybe it's political, but from a public health standpoint it feels like vaccination is a huge collective benefit, " she said. "And repeat, repeat, repeat that more than likely you're not going to be hospitalized with disease".