Dr. Supriya Sharma, chief medical adviser at Health Canada, speaks during a press conference to announce that Health Canada has authorized the Moderna COVID-19 vaccine, at the Sir John A. Macdonald Building in Ottawa on Wednesday, Dec. 23, 2020. THE CANADIAN PRESS/David Kawai

Dr. Supriya Sharma, chief medical adviser at Health Canada, speaks during a press conference to announce that Health Canada has authorized the Moderna COVID-19 vaccine, at the Sir John A. Macdonald Building in Ottawa on Wednesday, Dec. 23, 2020. THE CANADIAN PRESS/David Kawai

No unexpected side-effects from COVID-19 shots given in Canada so far: Health Canada

Most side effects subside within 24 hours

Health Canada has no reports of unexpected side-effects from patients vaccinated against COVID-19 thus far.

“There haven’t been any serious adverse events, or even the mild and moderate adverse events, that have been out of line or different than what we’ve seen in the clinical trials,” Dr. Supriya Sharma said in an interview with The Canadian Press Friday.

Sharma, Health Canada’s chief medical adviser, is overseeing the vaccine review process.

She said experts look for two things when reviewing data after vaccines are given. The first is whether anything happens that was not observed during the clinical trials, and the second is whether the side-effects that were documented during the trials are more severe or greater in number than what the trials saw.

The answer to both questions in Canada so far is no, said Sharma.

“It seems that the clinical trials are pretty representative,” she said.

The most common side-effects from the vaccines are short-term fever, pain at the injection site, headache and fatigue. Most subside within 24 hours.

Health Canada approved two vaccines for COVID-19 in December, including one from Pfizer and BioNTech and a second from Moderna.

Vaccinations began Dec. 14, and data aggregated by University of Saskatchewan student Noah Little shows about 230,000 doses have been given so far. Most of the first doses went to front-line hospital staff and long-term care workers and a smaller number of long-term care residents.

Vaccines began reaching some First Nations and northern territories this week.

Health Canada continues to review data from two other vaccine developers, AstraZeneca and Johnson & Johnson, but is still awaiting more data from the companies. Sharma said she can’t say when Health Canada would be ready to make a decision about either one.

Both companies are expected to complete Phase 3 clinical trials in the United States this month.

Mia Rabson, The Canadian Press

Like us on Facebook and follow us on Twitter.

Want to support local journalism? Make a donation here.

Coronavirus

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

Just Posted

(File photo)
UPDATE: Parts of Sylvan Lake under boil water advisory

Town staff are working to repair the break in the Sixty West area

The Sylvan Lake and Area Girl Guides were out selling cookies towards the end of March in the parking lot at the Sylvan Lake Walmart, where their fan-favourite mint chocolate cookies were available. This weekend all members of the Girl Guides will be pooling their resources for a cookie blitz at HJ Cody and Wal-Mart. (Photo by Megan Roth/Sylvan Lake News)
Sylvan Lake Girl Guides holding cookie blitz this weekend

Girl Guides will set up a drive-thru cookie sale in two locations: HJ Cody and Wal-Mart

The Town of Sylvan Lake is looking at amending it Land Use Bylaw to allow businesses to add a patio to their business. Last summer Lakeshore Drive was closed to motor vehicles and businesses were allowed to expand their patios onto the sidewalks, the amended bylaw will not allow for patios to expand onto sidewalks or roadways, but Town staff are looking into further iniatives and ideas. (File Photo)
Sylvan Lake looking to expedite patio applications

The Town of Sylvan Lake is looking to amend its Land Use Bylaw in regards to commercial patios

A empty classroom is pictured at Eric Hamber Secondary school in Vancouver, B.C. Monday, March 23, 2020. The Alberta government says schools in Calgary will move to at-home learning starting Monday for students in grades 7 to 12.THE CANADIAN PRESS/Jonathan Hayward
Calgary schools to shift to at-home learning for grades 7 to 12 due to COVID-19

The change, due to COVID-19, is to last for two weeks

A man wears a protective face covering to help prevent the spread of COVID-19 as he walks past the emergency entrance of Vancouver General Hospital in Vancouver, B.C., Friday, April 9, 2021. THE CANADIAN PRESS/Jonathan Hayward
COVID-19 spike in B.C. could overwhelm B.C. hospitals: modelling group

There are 397 people are in hospital due to the virus, surpassing a previous high of 374 seen in December

Ron Rauch and his wife Audrey are photographed at their home in Victoria, Friday, March 5, 2021. Their daughter Lisa Rauch died on Christmas Day 2019 when a tactical officer with the Victoria Police Department shot her in the back of the head with plastic bullets after barricading herself in a room that was on fire. THE CANADIAN PRESS/Chad Hipolito
B.C. families push for changes as special committee examines provincial Police Act

Solicitor General Mike Farnworth acknowledged the need to update the legislation last year

Major-General Dany Fortin, left, looks on as Minister of Public Services and Procurement Anita Anand provides an update on the COVID-19 pandemic, in Ottawa, Tuesday, Dec. 15, 2020. The Public Health Agency of Canada has set aside up to $5 billion to pay for COVID-19 vaccines. THE CANADIAN PRESS/Sean Kilpatrick
Canada negotiating contracts to secure COVID-19 booster shots for next year: Anand

Most of Canada’s current vaccine suppliers are already testing new versions against variants

(Government of Canada)
Liberal MP caught stark naked during House of Commons video conference

William Amos, in Quebec, appeared on the screens of his fellow members of Parliament completely naked

Health Canada headquarters in Ottawa. (Sean Kilpatrick/The Canadian Press)
Health Canada releases guidelines for reducing COVID-19 transmission at home

Improve indoor air quality by opening up your windows and doors, among other encouraged ventilation measures

Alberta Premier Jason Kenney updates media on measures taken to help with COVID-19, in Edmonton on Friday, March 20, 2020. Alberta is set to join three other provinces in exploring the feasibility of small modular reactors as a clean energy option. THE CANADIAN PRESS/Jason Franson
Four provinces to sign memorandum of understanding to explore small nuclear reactors

Alberta government said in August that it would enter into the agreement to help diversify its energy sector

Sharis Carr, a nurse at the Aaron E. Henry Community Health Service Center in Clarksdale, Miss., holds a box containing doses of the Johnson & Johnson COVID-19 vaccine Wednesday, April 7, 2021. The U.S. is recommending a “pause” in using the single-dose Johnson & Johnson COVID-19 vaccine to investigate reports of potentially dangerous blood clots. (AP Photo/Rogelio V. Solis)
EXPLAINER: What’s known about COVID vaccines and rare clots

These are not typical blood clots – they’re weird in two ways

Most Read