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Is a single COVID-19 vaccine dose enough for those previously infected? – Global News

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As coronavirus vaccines continue to roll out to vulnerable populations across Canada, health officials are looking at data about the effectiveness of a single dose in preventing COVID-19 illness.

A new letter by two Canadian experts published in the New England Journal of Medicine (NEJM) last week stated that with a 92.6 per cent efficacy, the first dose of the Pfizer vaccine was “highly protective.”

Read more:
Delaying second dose of coronavirus vaccines is ‘risky gamble,’ experts say

During a news conference on Feb. 18, Dr. Howard Njoo, Canada’s deputy chief public health officer, said that according to early data, the indicators are that there is a “good level of protection” after just one dose.






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How COVID-19 vaccination plans are evolving in Quebec, Ontario


How COVID-19 vaccination plans are evolving in Quebec, Ontario

France’s health authority, H.A.S., has gone one step further in recommending that everyone who has been previously infected with COVID-19 receive a single shot, instead of the two-dose regimen prescribed by vaccine makers Pfizer and Moderna.

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The recommendation made on Feb. 12 says the single booster shot should be given three to six months after COVID-19 infection.

The reasoning, according to H.A.S., is that people who have had a confirmed infection should be considered protected for at least three months by post-infection immunity, whether the disease was symptomatic or not.

“It is an interesting approach to take,” said Rowland Kao, professor of veterinary epidemiology and data science at the University of Edinburgh in Scotland.

“And you would expect that natural immunity will give you .. a more broad response (than the first dose) because it is the original virus that is causing it.”






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Pfizer-BioNTech COVID-19 vaccine 80-90% effective after 1st dose


Pfizer-BioNTech COVID-19 vaccine 80-90% effective after 1st dose

A spokesperson for H.A.S. told Global News that the French health minister has yet to make a decision on the recommendation. For now, France is giving two shots for both the Pfizer and Moderna vaccine.

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Amid shortages in vaccine supplies and a rush to control the pandemic, some experts say this strategy is worth considering as it could potentially save precious doses.

Read more:
Johnson & Johnson one-shot vaccine is safe, prevents COVID-19, U.S. FDA says

Dr. Gerald Evans, chair of infectious diseases at Queen’s University in Kingston, Ont., said a single dose of vaccine in someone previously infected is “reasonable while we continue to have a short supply of vaccine globally.”

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Two small studies in the United States by Mount Sinai and the University of Maryland showed a single dose in people who had COVID-19 provided at least the same amount of protection as two shots in people who haven’t been infected. The data has not yet been peer-reviewed.

You could treat getting COVID-19 as like getting your first dose of vaccine,” said Dr. Zain Chagla, an infectious diseases physician at St. Joseph’s Healthcare in Hamilton.

A single dose could serve as a booster to get the “prime long-term response,” he told Global News.

“You could definitely save on vaccine supply with these mRNA vaccines by only giving those individuals a single dose moving forward.”

Some Canadian provinces have decided to delay giving the second dose, which some experts have called a “risky approach” and “a gamble.”

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Last week, New Brunswick health officials said the province will delay the second dose of the Pfizer-BioNTech vaccine for those who are considered to be at a lower risk.

In mid-January, Quebec announced that it was pushing the time between the two doses to a maximum of three months in an attempt to vaccinate more seniors faster with a first injection.

Vaccine manufacturers Pfizer and Moderna propose intervals of 21 and 28 days, respectively.






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Why is Health Canada taking so long to approve the AstraZeneca vaccine?


Why is Health Canada taking so long to approve the AstraZeneca vaccine?

In its recommendation for the previously infected, France’s H.A.S. says people who have proven immunosuppression, which makes them more vulnerable to severe COVID-19 illness, should be given the two doses.

It also says people who catch the virus in the days after a first dose is given should not receive a second shot within the usual timeframe, but within three to six months after infection.

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Read more:
Booster shots, new clinical trials — What the COVID-19 variants could mean for vaccines

According to the data from the clinical trials, Pfizer’s vaccine, which is 95 per cent effective, can offer partial protection as early as 12 days after the first dose.

Kao said the immediate protection after the first dose and second dose is quite similar.

However, it still remains to be seen what the long-term immune response will be after the first dose.

We really don’t know how long that protection is going to last,“ said Kao.

The second dose is really there to give you that long-lasting immunity.”






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Quebec public health experts support delaying second COVID-19 dose


Quebec public health experts support delaying second COVID-19 dose

Data analysis by Canadian experts published in the NEJM found a 68.5 per cent vaccine efficacy beginning seven days after Pfizer’s first dose and a 92.6 percent efficacy two weeks after a single shot.

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Based on the evidence so far, Chagla says it is premature to roll out the single-dose strategy on a wide scale and that more research was needed on that front.

“If you could prove that works, you really do save a significant amount of vaccine … and you really can change your vaccine strategy almost overnight if you can implement something like that.”

— With files from Global News’ Linda Boyle

© 2021 Global News, a division of Corus Entertainment Inc.

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Transat AT reports $39.9M Q3 loss compared with $57.3M profit a year earlier

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MONTREAL – Travel company Transat AT Inc. reported a loss in its latest quarter compared with a profit a year earlier as its revenue edged lower.

The parent company of Air Transat says it lost $39.9 million or $1.03 per diluted share in its quarter ended July 31.

The result compared with a profit of $57.3 million or $1.49 per diluted share a year earlier.

Revenue in what was the company’s third quarter totalled $736.2 million, down from $746.3 million in the same quarter last year.

On an adjusted basis, Transat says it lost $1.10 per share in its latest quarter compared with an adjusted profit of $1.10 per share a year earlier.

Transat chief executive Annick Guérard says demand for leisure travel remains healthy, as evidenced by higher traffic, but consumers are increasingly price conscious given the current economic uncertainty.

This report by The Canadian Press was first published Sept. 12, 2024.

Companies in this story: (TSX:TRZ)

The Canadian Press. All rights reserved.

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Dollarama keeping an eye on competitors as Loblaw launches new ultra-discount chain

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Dollarama Inc.’s food aisles may have expanded far beyond sweet treats or piles of gum by the checkout counter in recent years, but its chief executive maintains his company is “not in the grocery business,” even if it’s keeping an eye on the sector.

“It’s just one small part of our store,” Neil Rossy told analysts on a Wednesday call, where he was questioned about the company’s food merchandise and rivals playing in the same space.

“We will keep an eye on all retailers — like all retailers keep an eye on us — to make sure that we’re competitive and we understand what’s out there.”

Over the last decade and as consumers have more recently sought deals, Dollarama’s food merchandise has expanded to include bread and pantry staples like cereal, rice and pasta sold at prices on par or below supermarkets.

However, the competition in the discount segment of the market Dollarama operates in intensified recently when the country’s biggest grocery chain began piloting a new ultra-discount store.

The No Name stores being tested by Loblaw Cos. Ltd. in Windsor, St. Catharines and Brockville, Ont., are billed as 20 per cent cheaper than discount retail competitors including No Frills. The grocery giant is able to offer such cost savings by relying on a smaller store footprint, fewer chilled products and a hearty range of No Name merchandise.

Though Rossy brushed off notions that his company is a supermarket challenger, grocers aren’t off his radar.

“All retailers in Canada are realistic about the fact that everyone is everyone’s competition on any given item or category,” he said.

Rossy declined to reveal how much of the chain’s sales would overlap with Loblaw or the food category, arguing the vast variety of items Dollarama sells is its strength rather than its grocery products alone.

“What makes Dollarama Dollarama is a very wide assortment of different departments that somewhat represent the old five-and-dime local convenience store,” he said.

The breadth of Dollarama’s offerings helped carry the company to a second-quarter profit of $285.9 million, up from $245.8 million in the same quarter last year as its sales rose 7.4 per cent.

The retailer said Wednesday the profit amounted to $1.02 per diluted share for the 13-week period ended July 28, up from 86 cents per diluted share a year earlier.

The period the quarter covers includes the start of summer, when Rossy said the weather was “terrible.”

“The weather got slightly better towards the end of the summer and our sales certainly increased, but not enough to make up for the season’s horrible start,” he said.

Sales totalled $1.56 billion for the quarter, up from $1.46 billion in the same quarter last year.

Comparable store sales, a key metric for retailers, increased 4.7 per cent, while the average transaction was down2.2 per cent and traffic was up seven per cent, RBC analyst Irene Nattel pointed out.

She told investors in a note that the numbers reflect “solid demand as cautious consumers focus on core consumables and everyday essentials.”

Analysts have attributed such behaviour to interest rates that have been slow to drop and high prices of key consumer goods, which are weighing on household budgets.

To cope, many Canadians have spent more time seeking deals, trading down to more affordable brands and forgoing small luxuries they would treat themselves to in better economic times.

“When people feel squeezed, they tend to shy away from discretionary, focus on the basics,” Rossy said. “When people are feeling good about their wallet, they tend to be more lax about the basics and more willing to spend on discretionary.”

The current economic situation has drawn in not just the average Canadian looking to save a buck or two, but also wealthier consumers.

“When the entire economy is feeling slightly squeezed, we get more consumers who might not have to or want to shop at a Dollarama generally or who enjoy shopping at a Dollarama but have the luxury of not having to worry about the price in some other store that they happen to be standing in that has those goods,” Rossy said.

“Well, when times are tougher, they’ll consider the extra five minutes to go to the store next door.”

This report by The Canadian Press was first published Sept. 11, 2024.

Companies in this story: (TSX:DOL)

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U.S. regulator fines TD Bank US$28M for faulty consumer reports

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TORONTO – The U.S. Consumer Financial Protection Bureau has ordered TD Bank Group to pay US$28 million for repeatedly sharing inaccurate, negative information about its customers to consumer reporting companies.

The agency says TD has to pay US$7.76 million in total to tens of thousands of victims of its illegal actions, along with a US$20 million civil penalty.

It says TD shared information that contained systemic errors about credit card and bank deposit accounts to consumer reporting companies, which can include credit reports as well as screening reports for tenants and employees and other background checks.

CFPB director Rohit Chopra says in a statement that TD threatened the consumer reports of customers with fraudulent information then “barely lifted a finger to fix it,” and that regulators will need to “focus major attention” on TD Bank to change its course.

TD says in a statement it self-identified these issues and proactively worked to improve its practices, and that it is committed to delivering on its responsibilities to its customers.

The bank also faces scrutiny in the U.S. over its anti-money laundering program where it expects to pay more than US$3 billion in monetary penalties to resolve.

This report by The Canadian Press was first published Sept. 11, 2024.

Companies in this story: (TSX:TD)

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