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Tag: vaccines

COVID ages women’s blood vessels, according to a study

COVID-19 causes women’s blood vessels to age prematurely, according to an international study involving two researchers from Université Laval. The disease should therefore be considered an additional risk factor in cardiovascular health analyses. Specifically, in those who have developed severe symptoms, they warn.

The aging of blood vessels results in greater rigidity, which can increase the risk of certain cardiovascular diseases.

“The heart must work a little harder to propel blood through the arterial system, and this causes variations in pressure that can damage sensitive organs, including the brain and kidneys,” explains Catherine Fortier, a kinesiologist and researcher in vascular aging at the CHU de Québec-Université Laval.

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COVID vaccines may have averted thousands of hospital stays in infants, pregnant women over 18 months

A US modeling study published yesterday in JAMA Pediatrics estimates that vaccinating pregnant women against COVID-19 prevented 7,000 hospitalizations in infants and 3,000 in pregnant women from January 2024 to May 2025.

The Stanford University–led research team analyzed COVID-NET surveillance data on COVID-19 hospitalization rates in infants younger than 6 months and incidence data on pregnant women aged 18 to 49 years under a relative risk of 2.65. The aim was to estimate the health impact of vaccination during pregnancy, mainly during the second or third trimester.

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COVID-19 vaccine campaigns launch across Canada for 2025-26

Provinces and territories are starting to roll out updated vaccines to protect people from COVID-19.

The Public Health Agency of Canada’s immunization guide says COVID vaccines have been shown to be effective at preventing severe disease, including hospitalization and death and can decrease the risk of post-COVID-19 condition, or long COVID.

The vaccination campaign comes as COVID-19 cases in people going to emergency or urgent care for respiratory symptoms have increased. About 10 per cent of tests were positive for the week ending Sept. 20, up from 9.6 per cent the previous week, according to the federal respiratory virus snapshot.

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COVID vaccine still free in Ontario as chief medical officer calls for action to combat skepticism, mistrust

When Ontario rolls out its fall vaccination campaign at pharmacies, doctor’s offices and clinics across the province in the coming weeks, it will be bucking a trend.

At a time when both Alberta and Quebec have stopped funding COVID vaccines for the general public, limiting them to higher risk populations, and access to COVID vaccines is becoming limited in the United States, Ontario is moving in another direction.

The fall vaccination campaign, beginning in October, includes free access to an updated COVID-19 vaccine for the general public as well as expanded access to a vaccine to prevent RSV (respiratory syncytial virus) for older adults, and the flu vaccine.

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No evidence that Tylenol causes autism, say Health Canada, World Health Organization

ORONTO – Health Canada, the World Health Organization and Canadian autism experts say there is no evidence that taking Tylenol during pregnancy causes autism.

Health Canada and the WHO issued statements last night and this morning in response to U.S. President Donald Trump’s unproven claim linking the drug — whose generic name is acetaminophen — to the disorder.

Health Canada says acetaminophen is a “recommended treatment of pain or fever in pregnancy” and “has been used safely by millions of Canadians for decades, including during pregnancy and while breastfeeding.”

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Trump makes unfounded claims about Tylenol and repeats discredited link between vaccines and autism

WASHINGTON (AP) — President Donald Trump on Monday used the platform of the presidency to promote unproven and in some cases discredited ties between Tylenol, vaccines and autism as his administration announced a wide-ranging effort to study the causes of the complex brain disorder.

“Don’t take Tylenol,” Trump instructed pregnant women around a dozen times during the unwieldy White House news conference, also urging mothers not to give their infants the drug, known by the generic name acetaminophen. He also fueled long-debunked claims that ingredients in vaccines or timing shots close together could contribute to rising rates of autism in the U.S., without providing any medical evidence.

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Manitoba offers COVID-19 shots for free as some provinces begin charging residents

Manitoba will continue covering the cost of COVID-19 shots as some other provinces begin charging residents.

The vaccinations are free for anyone six months and up and will remain that way in Manitoba, according to the province.

“There are no plans to change Manitoba’s policy at this time,” reads a statement from a Manitoba government spokesperson.

The news comes as Alberta and Quebec recently announced they would stop offering COVID-19 shots for free to the general public.

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The Moderna plant in Laval delivers its first COVID-19 vaccines

Moderna’s Laval plant has delivered its first doses of messenger RNA (mRNA) COVID-19 vaccines. The federal government hopes that the plant, which was built at a cost of $180 million with a $25 million investment from Quebec, will enable Canada to achieve pharmaceutical self-sufficiency.

“We will never find ourselves in this situation again,” said Minister of Innovation, Science and Industry Mélanie Joly at a press conference on Friday, recalling that Canada had to rely on the United States, the European Union, and India for its vaccine supply during the pandemic.

“We are building a strong industrial capacity, a sovereign industrial capacity, which will ensure that we are not dependent on other countries for our vaccine production.”

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Looking for your next COVID-19 or flu shot? Here’s when you can get it in Ontario

The Ontario government has released its schedule for fall immunization programs as it encourages residents to get flu and COVID-19 vaccinations.

In a media release on Thursday, the province said free flu and COVID-19 shots will be available to Ontarians as of Oct. 27 at participating pharmacies, some public health units and doctor’s offices.

Health Minister Sylvia Jones said in the release that Ontario is working with health-care partners to ensure immunizations are available and accessible to all.

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COVID-19 vaccines will no longer be free for everyone in Quebec

Starting this fall, the COVID-19 vaccine will no longer be offered free of charge to the entire Quebec population, confirmed the National Director of Public Health, Luc Boileau, on Wednesday.

Speaking on Midi info on ICI Première on Wednesday, Dr. Boileau clarified that the vaccine will be free for those deemed at risk.

This includes people aged 65 and over, the immunocompromised or those suffering from chronic illnesses, residents of CHSLDs, private seniors’ residences (RPAs) or other vulnerable settings, healthcare workers, adults living in remote areas, as well as pregnant women.

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The COVID-19 vaccine will no longer be free for everyone this fall

This fall, the COVID-19 vaccine will no longer be offered free of charge to the entire population, unlike in previous years. Quebec, now responsible for purchasing doses, will offer them free of charge only to those deemed at higher risk, Le Devoir has learned.

This information, which was communicated to pharmacies, was later confirmed to Le Devoir by the office of Health Minister Christian Dubé.

Quebec will therefore reserve the free doses during the vaccination campaign for people aged 65 and over, residents of CHSLDs, private seniors’ residences (RPAs), and other congregate settings with many vulnerable seniors, those who are immunocompromised or suffering from chronic illnesses, as well as pregnant women.

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Viewpoint: Four tips for understanding this week’s ACIP meeting

The last meeting of the Centers for Disease Control and Prevention’s (CDC’s) Advisory Committee on Immunization Practices (ACIP) in June abandoned the use of its rigorous evidence-to-recommendation framework for making vaccine policy decisions, which structures decisions around key factors, including the balance of benefits and harms, the type or quality of evidence and health economic analyses, among other elements. The meeting also included new members making inaccurate statements about both vaccine safety and efficacy and included a presentation by a well-known anti-vaccine advocate that was filled with errors.

Now, the committee is set to include even more vaccine skeptics when it meets later this week, according to published reports, including multiple anti–COVID mRNA vaccine activists. (On Monday, the U.S. Department of Health and Human Services (HHS) confirmed five new ACIP members.)

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Video | How Trump’s cuts to the CDC could threaten Canadians’ public health

The U.S. Centers for Disease Control has long been a global leader in disease tracking and evidence-based medical guidelines, but recent funding cuts and firings have caused many to wonder whether the institution is still a trusted source. CBC’s Nisha Patel breaks down how some of those changes could put Canadians at risk.

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Florida plans to become first state to eliminate all childhood vaccine mandates

ST. PETERSBURG, Fla. (AP) — Florida plans to become the first state to eliminate vaccine mandates, a longtime cornerstone of public health policy for keeping schoolchildren and adults safe from infectious diseases.

State Surgeon General Dr. Joseph Ladapo, who announced the decision Wednesday, cast current requirements in schools and elsewhere as “immoral” intrusions on people’s rights that hamper parents’ ability to make health decisions for their children.

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Antihistamine nasal spray prevents COVID-19, study finds

Results from a single-center randomized controlled trial published yesterday in JAMA Internal Medicine show that azelastine, an antihistamine nasal spray used as a preventive measure, was associated with a 69% reduction of COVID-19 infection.

Azelastine is a widely available over-the-counter treatment for seasonal allergies (hay fever).

“This clinical trial is the first to demonstrate a protective effect in a real-world setting,” said Robert Bals, MD, PhD, a professor at Saarland University in Germany and senior author of the study, in a university press release.

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Alberta polio survivors fear ‘horrifying’ virus could return

Polio, a highly contagious viral infection that can cause paralysis and death, has been eradicated in Canada for decades thanks to widespread vaccination efforts.

There is no cure for polio; it can only be prevented, and doctors warn if vaccine rates continue to decline as they have in recent years, it could open the door to a return of the virus in Canada.

“It’s ridiculous,” said Pat Murray, a polio survivor who contracted the disease at just nine months old.

“It’s heartbreaking.”

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We Ran the C.D.C.: Kennedy Is Endangering Every American’s Health

We have each had the honor and privilege of serving as director of the Centers for Disease Control and Prevention, either in a permanent or acting capacity, dating back to 1977. Collectively, we spent more than 100 years working at the C.D.C., the world’s pre-eminent public health agency. We served under multiple Republican and Democratic administrations — every president from Jimmy Carter to Donald Trump — alongside thousands of dedicated staff members who shared our commitment to saving lives and improving health.

What Health and Human Services Secretary Robert F. Kennedy Jr. has done to the C.D.C. and to our nation’s public health system over the past several months — culminating in his decision to fire Dr. Susan Monarez as C.D.C. director days ago — is unlike anything we have ever seen at the agency, and unlike anything our country has ever experienced.

Secretary Kennedy has fired thousands of federal health workers and severely weakened programs designed to protect Americans from cancer, heart attacks, strokes, lead poisoning, injury, violence and more. Amid the largest measles outbreak in the United States in a generation, he’s focused on unproven “treatments” while downplaying vaccines. He canceled investments in promising medical research that will leave us ill prepared for future health emergencies. He replaced experts on federal health advisory committees with unqualified individuals who share his dangerous and unscientific views. He announced the end of U.S. support for global vaccination programs that protect millions of children and keep Americans safe, citing flawed research and making inaccurate statements. And he championed federal legislation that will cause millions of people with health insurance through Medicaid to lose their coverage. Firing Dr. Monarez — which led to the resignations of top C.D.C. officials — adds considerable fuel to this raging fire.

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CVS and Walgreens Clamp Down on Covid Vaccines in Many States

CVS and Walgreens, the country’s two largest pharmacy chains, are for now clamping down on offering Covid vaccines in more than a dozen states, even to people who meet newly restricted criteria from the Food and Drug Administration.

On Thursday, Amy Thibault, a spokeswoman for CVS, said the vaccine was not available at pharmacies in 16 states, citing “the current regulatory environment” and emphasizing that the list could change.

On Friday, CVS issued an update: It could administer vaccines in 13 of the 16 states, and in the District of Columbia, to people who had obtained a prescription from a doctor or other medical provider. (As of Friday morning, its online scheduling tool still did not allow anybody to book an appointment in those places; Ms. Thibault said an update was in progress.) In Massachusetts, Nevada and New Mexico, CVS still cannot offer the shots at all, Ms. Thibault said.

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