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World
COVID shots can impact period timing, studies suggest. Women were already wondering
This is an excerpt from Second Opinion, a weekly analysis of health and medical science news. If you haven't subscribed yet, you can do that by clicking here.A new international study featured menstrual cycle tracking data from nearly…
Canada needs a pandemic post-mortem — now, not later
It would be unfair to blame anyone — doctors and nurses, political leaders and health officials, average Canadians — for wanting to never think about COVID-19 again. Even if the pandemic isn't actually over, the desire to move on is evident…
With hospitals overwhelmed, can Canada overhaul health care for the long term?
As hospitals strain under the burden of record-high numbers of COVID-19 patients, two former health ministers warn that there is no silver bullet that can reform the health-care system and safeguard it for the long run. "People always want…
Stuck in South Africa, new travel rules put this Canadian’s trip home for the holidays at risk
Andrew Neumann's hopes of making it home for the holidays have been cast into doubt by the emergence of the omicron coronavirus variant and the swift implementation of new pandemic border restrictions around the world. "It's actually a…
You’ll likely catch COVID-19 again and again. Will each round feel milder?
By this point in the pandemic, you've likely had COVID-19 at least once. Maybe twice. Perhaps even three times, as some unfortunate Canadians have experienced, all while this virus evolved to become increasingly savvy at infecting us.It's…
Calls grow for HEPA air filters in Canadian classrooms
As the highly transmissible Omicron variant fuels record-high case counts, and schools across Canada delay in-person learning, calls are growing for another layer of protection to be added to classrooms — HEPA filters. Air purifiers with …
Researchers are still untangling the risks of catching COVID over and over
This story is part of CBC Health's Second Opinion, a weekly analysis of health and medical science news emailed to subscribers on Saturday mornings. If you haven't subscribed yet, you can do that by clicking here.In the early days of the…
B.C. to allow COVID-positive and double-vaxxed patients to share hospital rooms
Due to record-high hospitalizations, patients who have COVID-19 are being placed in the same room with double-vaccinated people who do not have the virus, British Columbia health officials said. B.C. Provincial Health Officer Dr. Bonnie…
Research on HEPA filters and COVID is slim, but some experts are optimistic
Many students returning to in-person learning on Monday will have to get used to a new sound in the classroom: the buzz of a portable air cleaner. Several provincial and territorial governments will reopen schools on Monday for the first…
Pfizer’s COVID-19 pill could have real impact in Canada — if we can roll it out fast enough
After Canada approved a new treatment for COVID-19, Pfizer's highly effective oral therapeutic Paxlovid, experts are hopeful the highly sought after pill can help control a devastating Omicron-driven surge — if it's rolled out fast enough.…
Canada needs to make a tough call on boosters as a new variant emerges
This is an excerpt from Second Opinion, a weekly roundup of health and medical science news emailed to subscribers every Saturday morning. If you haven't subscribed yet, you can do that by clicking here. Despite a growing push to roll out…
Canadian COVID-19 vaccine study seized on by anti-vaxxers — highlighting dangers of early research…
Subscribe to Second Opinion for a weekly roundup of health and medical science news. A Canadian study that vastly underestimated the protection COVID-19 vaccines provide against the Omicron variant is being revised — but not before it…
What we know so far about getting COVID-19 twice in the age of Omicron
Getting COVID-19 a second time was once considered a rarity. Now, with the more transmissible Omicron subvariant BA.2 spreading throughout the country, reinfections are becoming more common, immunology and infectious diseases experts say.…
How the American health system is holding up compared with ours
Everyone's got an opinion on health care, especially now, as Omicron tests our various systems, exposing their vulnerabilities and overwhelming weaknesses in an avalanche of illness. Few, however, have Jenna Meloche's perspective. She's a…
Manitoba heading toward ‘severe’ COVID-19 pandemic scenario, top doctor says
The trajectory of Manitoba's fourth wave of the COVID-19 pandemic puts it on a path to potentially see hundreds of new daily cases and dozens of patients in intensive care units by the end of the year. Dr. Brent Roussin, chief provincial…
COVID-19 infections are on the rise and omicron could quadruple daily case counts, federal modelling…
New modelling released today by the Public Health Agency of Canada (PHAC) suggests the number of COVID-19 cases could increase sharply in the coming weeks as the country grapples with another wave of delta infections and the highly…
Protest crowd remains on Ambassador Bridge after police clear out part of blockade
A crowd of defiant anti-mandate demonstrators remained on the street near the Ambassador Bridge in Windsor, Ont., on Saturday night, hours after police had moved in to break up the days-long protest and clear some of the blockade. By…
Ottawa police close in on final protesters, vow to hold all participants accountable
The latest: 47 people arrested so far on Saturday for a total of 170. 53 vehicles towed and 22 licence plates seized since Friday. Ottawa police have used pepper spray on what they call assaultive behaviour. Police say they deployed…
Children’s hospitals under strain in Canada’s 6th COVID-19 wave
As Canada's sixth wave of COVID-19 continues, hospitals caring for the country's youngest patients are facing both high patient volumes and high levels of staff off sick. This time of year, the Children's Hospital of Eastern Ontario (CHEO)…
You’re boosted and have recently recovered from Omicron. What’s your risk of…
Over the past month, thousands of Canadians have caught and recovered from the Omicron variant of COVID-19, with Canada's chief public health officer saying cases have likely peaked nationwide. People who have received two doses of the…
COVID-19 hasn’t gone anywhere in Canada — and we could still see another surge
This is an excerpt from Second Opinion, a weekly health and medical science newsletter. If you haven't subscribed yet, you can do that by clicking here. COVID-19 may no longer be top of mind for Canadians, but there are still more cases…
Protesters who come to Ottawa risk being tied to ‘dangerous criminal activity,’ minister…
Public Safety Minister Marco Mendicino warned Wednesday that those joining convoy protests in Ottawa risk being connected to "dangerous criminal activity." At the start of the week, the federal government invoked the Emergencies Act for…
Ontario moves school online, closes indoor dining and gyms as part of sweeping new COVID-19 measures
Ontario is moving schools online for at least two weeks, temporarily closing indoor dining and gyms and pausing non-urgent medical procedures as it faces record-high case counts that, according to public health officials, threaten to…
Why navigating your COVID risk is now harder than ever
This is an excerpt from Second Opinion, a weekly health and medical science newsletter. If you haven't subscribed yet, you can do that by clicking here. Figuring out where you're most at risk of catching COVID-19 is more challenging than…
Coronavirus: What happened in Canada and around the world on Dec. 31
The latest: More provinces have reduced isolation requirements for people who test positive for COVID-19 Friday in an effort to lessen staffing shortages as the Omicron variant continued to drive diagnoses at record rates. British…
B.C. officials announce return to in-class learning, order businesses to reactivate COVID safety…
The B.C. government says thousands of students across the province will return to in-class learning Monday despite the risk that the highly transmissible Omicron variant could significantly impact staffing in the weeks to come. Education…
Emergencies Act passes crucial House of Commons vote with NDP support
A motion affirming the Liberal government's decision to invoke the Emergencies Act passed a crucial House of Commons vote Monday, ensuring the expansive powers contained in the act remain in use by authorities thanks to parliamentary…
N.W.T. premier says he wants complete carbon tax exemption for territory
Canada's newest premier says that in an ideal world, Ottawa would provide his territory with a blanket exemption from the carbon tax."I mean, ideally, a complete exemption for the territory is what we would hope for," said R.J. Simpson, …