A vial of the Oxford-AstraZeneca COVID-19 vaccine is seen with injection supplies at a clinic in Winnipeg on March 19, 2021. THE CANADIAN PRESS/John Woods

A vial of the Oxford-AstraZeneca COVID-19 vaccine is seen with injection supplies at a clinic in Winnipeg on March 19, 2021. THE CANADIAN PRESS/John Woods

Health Canada says AstraZeneca vaccine safe, effective but will add warning on clots

Canada has thus far received about 500,000 doses of the Oxford-AstraZeneca vaccine

Health Canada is devising a warning about a rare possible side-effect of blood clots from the Oxford-AstraZeneca vaccine but is still certain the inoculation is safe and effective against COVID-19.

The department’s chief medical adviser Dr. Supriya Sharma said Tuesday the plan for a warning comes on the heels of a similar move in Europe last week but doesn’t change Health Canada’s analysis that the vaccine’s benefits outweigh its risks.

“We were observers at that European Medicines Agency subcommittee meeting, we’ve looked at the data as well,” she said. “And so we’re in the process of making similar changes to the information for Canadians.”

The European Medicines Agency last week amended its authorization of the vaccine to say there is no overall increase in the risk of blood clots after getting the vaccine but added a warning that a small number of patients had developed rare blood clots in the brain after getting it.

At the time the EMA couldn’t say if the clots were related to the vaccine. German and Norwegian scientists have since said in a very small number of patients the vaccine is causing an extreme immune response that is leading to the clots. It is a treatable condition, they said.

The EMA reported 18 cases of cerebral venous sinus thrombosis, out of about 20 million people who received the Oxford-AstraZeneca vaccine in Europe, the United Kingdom, and India, and seven cases of another type of clotting disorder related to very low platelet counts.

Sharma said the vaccine is still hugely beneficial, including protecting against severe illness and death from the novel coronavirus’s variants of concern, but Health Canada is looking to adjust the label on the vaccine to note the reports of the rare types of clots and potential symptoms that could occur. Those include, she said, persistent and intense headaches that last for several days, shortness of breath and pain in the legs.

Sharma said there is no doubt all of the reports about this vaccine are a concern because they feed fears about its safety. She said Health Canada will continue to provide accurate and current information so Canadians can trust the vaccine is safe to get.

“We’ve said this many times before, that even the most effective vaccine only works if people trust it and agree to receive it,” she said. “It’s like any other reputation — once there’s some doubt that creeps into that reputation, it’s that much more difficult to gain that back.”

Canada has thus far received about 500,000 doses of the Oxford-AstraZeneca vaccine and expects to get 1.5 million more as soon as this week from the United States.

Even without those doses Canada’s deliveries of more than two million doses of other COVID-19 vaccines from Pfizer-BioNTech and Moderna are the most in a week yet. Though the first of two shipments expected from Moderna has been delayed a day, arriving Wednesday instead of Tuesday.

More than 3.5 million people in Canada have received at least one dose now.

Chief public health officer Dr. Theresa Tam said she knows everyone is tired of the “tricks and turns of this virus” and said there are many reasons to be hopeful, including the faster pace of vaccinations.

Still she warned, variants of concern continue to rise and the number of new COVID-19 cases rose 15 per cent over the last week. In turn, the numbers of people in hospital overall, and those needing intensive care, are creeping upwards.

In the last week an average of 2,100 people were in hospital in Canada being treated for COVID-19 on any given day, including 580 in critical care, compared to 2,040 in hospital and 550 in ICUs a week ago.

Since vaccinations began, COVID-19 infection rates in people over 80 have slowed, said Tam, but younger people, particularly under the age of 40, are seeing higher rates.

Dr. Deena Hinshaw, the chief medical officer of health in Alberta, said 88 per cent of the 48 patients in intensive care in that province are under age 65. Hinshaw said people need to continue to make good decisions to keep the spread of the virus down.

“Now is not the time to abandon the practices that have protected our communities and health care system over the past year,” said Hinshaw on Twitter. “Once we hit a growth phase of this virus, our #s will not stand still.”

READ MORE: Canadian doctors say getting COVID-19 poses greater risk of blood clots than the vaccine

Mia Rabson, The Canadian Press


Like us on Facebook and follow us on Twitter.

Want to support local journalism during the pandemic? Make a donation here.

Coronavirusvaccines

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

School District 83 trustees are expected to be discussing the current Long Range Facilities Plan options at the April 20 school board meeting. (File photo)
Letter: Let the people have their say on Salmon Arm school options

Parent encourages School District 83 board to hold off on making a decision

South Shuswap. (Google Maps)
CSRD to ask school trustees to delay decision on Salmon Arm high school options

South Shuswap director advocating for Sorrento high school option

Elvira D’Angelo, 92, waits to receive her COVID-19 vaccination shot at a clinic in Montreal, Sunday, March 7, 2021, as the COVID-19 pandemic continues in Canada and around the world. THE CANADIAN PRESS/Graham Hughes
110 new cases of COVID-19 in Interior Health

Provincial health officers announced 1,005 new cases throughout B.C.

Public input on the City of Enderby’s proposed 2021 budget is open until 3:30 p.m. Monday, April 19, 2021. (City of Enderby photo)
Enderby’s proposed 2021 budget open for public input

The proposed spending plan includes a 2.2 per cent tax increase; public input open until Monday

Glenn Moyer is seeking space on a public wharf in Sicamous in order to restart his water taxi business after a year-long shutdown due to COVID-19. (Glenn’s Water Taxi/Facebook)
Water taxi operator requests public dock moorage in Sicamous

Glenn Moyer, a long time water taxi operator, is brimming with stories of life on the lake

Flow Academy is located at 1511 Sutherland Avenue in Kelowna. (Michael Rodriguez - Capital News)
Black Press Media Weekly Roundup: Top headlines this week

Here’s a quick roundup of the stories that made headlines across the Okanagan, from April 11 to 16

A vial of some of the first 500,000 of the two million AstraZeneca COVID-19 vaccine doses that Canada secured. THE CANADIAN PRESS/Carlos Osorio
Canada’s 2nd blood clot confirmed in Alberta after AstraZeneca vaccine

Th male patient, who is in his 60s, is said to be recovering

Valen a student of Coldstream Elementary writes advice for adults amid a pandemic.
‘We can get rid of COVID together’: B.C. kids share heartwarming advice

Elementary students share their wisdom to adults in unprecedented times

Mervin Mascarenhas giving one of his pens to Honorary JP-MP. Premier David Burt of Bermuda. (Image: Mervin Mascarenhas)
Kelowna man who made $90K ‘Space Pen’ recognized by dignitaries, sheikhs

Mervin Mascarenhas is the first Canadian to grace the cover of Millennium Millionaire Magazine

The funeral of Britain’s Prince Philip in Windsor, England, on Saturday, April 17, 2021. Philip died April 9 at the age of 99. (Kirsty Wigglesworth/AP)
PHOTOS: Prince Philip laid to rest Saturday as sombre queen sits alone

The entire royal procession and funeral took place out of public view within the grounds of Windsor Castle

B.C. Health Minister Adrian Dix and Premier John Horgan describe vaccine rollout at the legislature, March 29, 2021. (B.C. government)
B.C. health minister says delay in Moderna vaccine ‘disappointing’

‘The sooner we get vaccines in people’s arms the better, and inconsistency in delivery is a consistent problem. This is simply a reality and not an issue of blame,’ Adrian Dix said Friday

(Police handout/Kamloops RCMP)
B.C. man dies in custody awaiting trial for Valentine’s Day robbery, kidnapping spree

Robert James Rennie, who was on the Kamloops RCMP’s most wanted list, passed away at the North Fraser Pretrial Centre in Coquitlam

Photos of Vancouver Canucks players are pictured outside the closed box office of Rogers Arena in downtown Vancouver Thursday, April 8, 2021. THE CANADIAN PRESS/Jonathan Hayward
Canucks games against Leafs postponed as team returns from COVID-19

The team has had 11 games postponed since an outbreak late last month

Old English design elements can be seen in the sign of the Summerland Farm and Garden Centre in 1993. The guidelines are no longer in place, but some downtown businesses still show aspects of the days when Summerland had a theme in place. This photo was taken by Summerland photographer Dan Dorotich. (Photo courtesy of the Summerland Museum)
Summerland’s Old English theme has been abandoned

From the 1980s until the early 2000s, Summerland had design guidelines in its downtown

Most Read