Skip to main content
The Globe and Mail
Support Quality Journalism.
The Globe and Mail
First Access to Latest
Investment News
Collection of curated
e-books and guides
Inform your decisions via
Globe Investor Tools
Just$1.99
per week
for first 24 weeks

Enjoy unlimited digital access
Enjoy Unlimited Digital Access
Get full access to globeandmail.com
Just $1.99 per week for the first 24 weeks
Just $1.99 per week for the first 24 weeks
var select={root:".js-sub-pencil",control:".js-sub-pencil-control",open:"o-sub-pencil--open",closed:"o-sub-pencil--closed"},dom={},allowExpand=!0;function pencilInit(o){var e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];select.root=o,dom.root=document.querySelector(select.root),dom.root&&(dom.control=document.querySelector(select.control),dom.control.addEventListener("click",onToggleClicked),setPanelState(e),window.addEventListener("scroll",onWindowScroll),dom.root.removeAttribute("hidden"))}function isPanelOpen(){return dom.root.classList.contains(select.open)}function setPanelState(o){dom.root.classList[o?"add":"remove"](select.open),dom.root.classList[o?"remove":"add"](select.closed),dom.control.setAttribute("aria-expanded",o)}function onToggleClicked(){var l=!isPanelOpen();setPanelState(l)}function onWindowScroll(){window.requestAnimationFrame(function() {var l=isPanelOpen(),n=0===(document.body.scrollTop||document.documentElement.scrollTop);n||l||!allowExpand?n&&l&&(allowExpand=!0,setPanelState(!1)):(allowExpand=!1,setPanelState(!0))});}pencilInit(".js-sub-pencil",!1); // via darwin-bg var slideIndex = 0; carousel(); function carousel() { var i; var x = document.getElementsByClassName("subs_valueprop"); for (i = 0; i < x.length; i++) { x[i].style.display = "none"; } slideIndex++; if (slideIndex> x.length) { slideIndex = 1; } x[slideIndex - 1].style.display = "block"; setTimeout(carousel, 2500); } //

A sign advising people to wear face masks is shown in a department store in Montreal, on July 18, 2020.

Graham Hughes/The Canadian Press

More young people are being infected with COVID-19, creating the potential for a severe outbreak, scientists warn.

They say the change in demographics could be attributed to lockdown fatigue, increased testing or feelings of invincibility.

Brett Snider, a water resources PhD student at the University of Guelph, first noticed a higher number of infections in the under 20 and 20-29 age groups in the Toronto and Peel regions in May.

Story continues below advertisement

Snider’s supervisor, Ed McBean, said he was puzzled by rising infections in the under 20 age group because daycares and schools were closed.

“And we thought ‘whoa’. The little ones don’t tend to get violently ill, but they will bring it home. And if you have multiple generations or even visitors, you get that uptick as a result,” said McBean, an engineering professor at the University of Guelph.

While the numbers have stabilized in Peel and Toronto, McBean said there’s been an increase in infections in younger people in other parts of the country.

“That’s critical because once you start to get an uptick, it can explode very quickly,” he said.

McBean said he’s especially worried about the increase in infections in the under-20 age group.

Children who may be sick don’t usually show symptoms and when they share a space or toys, they might spread the infection to others and then carry it home, he said.

“If we start to see an increase in the younger age category there’s no doubt that it’ll eventually spread from the parent to the grandparent, and it can have severe impacts on older populations.”

Story continues below advertisement

McBean said his message for public health officials is to keep daycares and schools closed.

Data from British Columbia, Ontario, Alberta, Saskatchewan, Quebec, Manitoba, Nova Scotia, New Brunswick and Prince Edward Island show an increase in COVID-19 infections in the 20-29 age groups. The figures also show more women are testing positive for COVID-19.

Numbers from the Public Health Agency of Canada show that during the second week of July, the largest proportion of new cases reported – 22 per cent of female cases and 28 per cent of male cases – was among the 20-29 age group.

Since the start of the pandemic, 14 per cent of female cases and 15 per cent of male cases have been up in that age group.

The younger age groups are now making up a higher percentage of positive tests, while older age groups are falling overall, the data show.

Only 55 per cent of Canadians regularly wear masks, support for mandatory masks rising: poll

Feds order enough supplies to give two doses of COVID-19 vaccine per Canadian when it’s ready

A clinical professor at the University of B.C.‘s school of population and public health said the increase could be because it’s summer and fewer employment opportunities during the pandemic mean more time for young people to spend with friends.

Story continues below advertisement

Stephen Hoption Cann said when they get together in larger groups, young people can potentially spread the virus because they may not show symptoms or have a mild infection.

“They have to be cautious in social gatherings, pubs and bars,” he said.

“You never really know when you’re close to the person who might be infected so you have to be more cautious.”

Dr. Barbara Yaffe, Ontario’s associate chief medical officer of health, said health officials have noticed the same trend, noting healthy people either don’t show symptoms, have very mild symptoms or they don’t know they have COVID-19.

“I think that contributes to potentially, some complacency,” she said at a recent news briefing.

While young people may not see the infection as a “big deal,” they may pass it on to a person they’re close with who has an underlying medical condition, Yaffe said.

Story continues below advertisement

B.C. public health officials said early on many long-term care and assisted living facilities were hard hit and now most of the province’s new cases are in the broader community.

“We are concerned about the increase in new cases in recent days as COVID-19 continues to silently circulate in our communities,” B.C.‘s health minister and provincial health officer said recently in a statement.

Another factor for consideration is a larger number of infections among women.

Julia Smith, a research associate at Simon Fraser University’s faculty of health sciences, said Canada had a higher proportion of women infected than other countries near the start of the pandemic.

Age and employment may be factors, she said.

Most residents of long-term care homes tend to be women, she noted. Such homes were the first to be hit with COVID-19 in Canada, killing thousands of seniors.

Story continues below advertisement

Women also tend to make up a larger share of health-care workers who would have more interactions with patients, putting them at greater risk of infection, Smith said.

McBean said the messaging to maintain safe social distancing and frequent handwashing, wear a mask and get together in small groups outdoors remains the best way to avoid infection.

Keeping the Canada-U.S. border closed for as long as possible would also help prevent external infections from coming into the community, he said.

McBean said provinces need to continue to follow strict protocols to keep the virus contained, and keep the R value below one. The R value or reproduction rate represents the average number of new people who will catch the disease from one infected person.

If R value is less than one, then the epidemic is being brought under control. If R is greater than one, then the epidemic is growing.

“We’re on a very fine line as it is right now in Ontario. So, we just have to be very careful in that number doesn’t start to creep up again and be above one,” McBean said.

Story continues below advertisement

McBean said provinces need to continue to follow strict protocols to keep the virus contained.

“Basically, we’re doing pretty well,” he said. “I mean this is a terribly infective virus and so easily transmitted. It’s much worse than the others. This one’s pretty bad.”

Editor’s note: (July 20, 2020): This story has been updated to correct Dr. Barbara Yaffe's job title.
Large parts of Ontario moved to Stage 3 reopening on July 17, with restaurants allowed to serve eat-in customers. The Canadian Press

Sign up for the Coronavirus Update newsletter to read the day’s essential coronavirus news, features and explainers written by Globe reporters and editors.

Your Globe

Build your personal news feed

  1. Follow topics and authors relevant to your reading interests.
  2. Check your Following feed daily, and never miss an article. Access your Following feed from your account menu at the top right corner of every page.

Follow topics related to this article:

View more suggestions in Following Read more about following topics and authors
Report an error
Due to technical reasons, we have temporarily removed commenting from our articles. We hope to have this fixed soon. Thank you for your patience. If you are looking to give feedback on our new site, please send it along to feedback@globeandmail.com. If you want to write a letter to the editor, please forward to letters@globeandmail.com.

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff.

We aim to create a safe and valuable space for discussion and debate. That means:

  • Treat others as you wish to be treated
  • Criticize ideas, not people
  • Stay on topic
  • Avoid the use of toxic and offensive language
  • Flag bad behaviour

If you do not see your comment posted immediately, it is being reviewed by the moderation team and may appear shortly, generally within an hour.

We aim to have all comments reviewed in a timely manner.

Comments that violate our community guidelines will not be posted.

Read our community guidelines here

Discussion loading ...

To view this site properly, enable cookies in your browser. Read our privacy policy to learn more.
How to enable cookies