Alberta says Moderna, Pfizer vaccines 'interchangeable' amid shipment delay
Alberta is following the steps of Ontario and calling the Moderna and Pfizer COVID-19 vaccines "interchangeable" in the face of a two-to-three-day delay in the latter product.
The province is set to receive some 280,000 Pfizer doses the week of June 21, but Canada's shipment of 2.4 million shots from Pfizer and BioNTech isn't slated to arrive until mid-week.
Alberta Health Services is encouraging Albertans who want an earlier appointment to switch their vaccine preference to Moderna in the meantime.
"Both Pfizer and Moderna are mRNA vaccines and work in the same way. They are now considered to be interchangeable," it said in an announcement Sunday afternoon.
"If you book for Moderna, you will be able to get an earlier appointment thus complete your series."
More detailed information on the AHS website called it typical for people get booked for the same product as their first shot, but not essential. The vaccines work the same, are both about 94 to 95 per cent effective in preventing COVID-19 disease, and have similar side effects, the agency said.
"There is no reason to believe that a second dose with a different mRNA vaccine product would result in additional safety issues or deficiency in protection. Two doses of any of the COVID-19 vaccines available in Alberta is considered a complete, safe and protective vaccine series."
An Edmonton epidemiologist echoed this, noting the products' similar technology, efficacy, and side effect profiles.
"There's no reason to think that mixing and matching them is going to produce either less immune response or more side effects," Dr. Stephanie Smith told CTV News Edmonton.
"So I would say absolutely, it's important to get that second shot as soon as possible. And I would certainly have no concerns about getting a Moderna vaccine if you've initially had a Pfizer."
NATIONAL GUIDANCE
The recommendation is in line with advice from the Public Health Agency of Canada and the National Advisory Committee on Immunization, which said on Friday people who received a first dose of an mRNA vaccine should be offered the same for their second dose unless it is unavailable.
"If the same mRNA vaccine is not readily available or unknown, another mRNA vaccine can be considered interchangeable and should be offered to complete the vaccine series."
Ontario announced over the weekend it would use an influx of Moderna supply to "supplement the delayed Pfizer doses."
"Both Moderna and Pfizer vaccines are authorized for use in Canada and use a similar mRNA technology, so the vaccines are interchangeable and safe to mix," a statement from its healthy ministry read.
Canada expects to receive 5.2 million doses in total this week from the two major vaccine suppliers. Of the 2.8 million doses of Moderna, more than 770,000 will land in Alberta.
Second doses have begun to outpace first doses in the province: On Saturday, more than 45,200 second doses and nearly 6,700 first doses were administered.
According to the latest data, 70.6 per cent of the population aged 12 and older have received at least one dose, while the portion of people fully immunized sits around 28.6 per cent.
With files from CTV News Edmonton's Nahreman Issa and Adam Lachacz
CTVNews.ca Top Stories
Cuban government apologizes to Montreal-area family after delivering wrong body
Cuba's foreign affairs minister has apologized to a Montreal-area family after they were sent the wrong body following the death of a loved one.
What is changing about Canada's capital gains tax and how does it impact me?
The federal government's proposed change to capital gains taxation is expected to increase taxes on investments and mainly affect wealthy Canadians and businesses. Here's what you need to know about the move.
'Anything to win': Trudeau says as Poilievre defends meeting protesters
Prime Minister Justin Trudeau is accusing Conservative Leader Pierre Poilievre of welcoming 'the support of conspiracy theorists and extremists,' after the Conservative leader was photographed meeting with protesters, which his office has defended.
Fair in Ontario, flurries in Labrador: Weather systems make for an erratic spring
"It's a bit of a complicated pattern; we've got a lot going on," said Jennifer Smith of the Meteorological Service of Canada in an interview with CTVNews.ca on Wednesday. "[As is] typical with weather, all of these things are related."
Quebec nurse had to clean up after husband's death in Montreal hospital
On a night she should have been mourning, a nurse from Quebec's Laurentians region says she was forced to clean up her husband after he died at a hospital in Montreal.
Police tangle with students in Texas and California as wave of campus protest against Gaza war grows
Police tangled with student demonstrators in Texas and California while new encampments sprouted Wednesday at Harvard and other colleges as school leaders sought ways to defuse a growing wave of pro-Palestinian protests.
Bank of Canada officials split on when to start cutting interest rates
Members of the Bank of Canada's governing council were split on how long the central bank should wait before it starts cutting interest rates when they met earlier this month.
Northern Ont. lawyer who abandoned clients in child protection cases disbarred
A North Bay, Ont., lawyer who abandoned 15 clients – many of them child protection cases – has lost his licence to practise law.
'My stomach dropped': Winnipeg man speaks out after being criminally harassed following single online date
A Winnipeg man said a single date gone wrong led to years of criminal harassment, false arrests, stress and depression.