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Tag: research

Video | Study finds no link between COVID vaccines and fatal heart problems in young people

A new study from the U.S. Centers for Disease Control and Prevention shows there is no evidence to suggest COVID vaccines cause sudden cardiac death or other fatal heart problems in young people.

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Radio | COVID infections are causing drops in IQ and years of brain aging, studies suggest

When COVID-19 first reared its head back in 2019, it brought with it a slew of strange symptoms beyond just respiratory problems. One of the most puzzling symptoms in those early days was something called “brain fog” — cognitive issues like confusion, forgetfulness, and trouble focusing.

And while other symptoms have changed as the virus mutated, brain fog is still a common complaint of COVID sufferers not only during the initial illness, but extending for months or even years afterwards. Several recent studies have been trying to understand exactly what this virus is doing to our brains — and how to stop it.

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Feds launch indoor air quality research program

The Advanced Research Projects Agency for Health (ARPA-H) this week announced the launch of the Building Resilient Environments for Air and Total Health (BREATHE) program, which is a platform with a goal of improving indoor air quality across the country.

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Three studies spotlight long-term burden of COVID in US adults

Three new studies shed new light on long COVID in the United States, with one finding that two thirds of severely ill patients reported persistent impairments for up to 1 year, another showing that US veterans were at three times the risk of preventable hospitalization in the month after infection, and the last revealing that one third of COVID-19 survivors had lingering symptoms at one time.

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They’re young and athletic. They’re also ill with a condition called POTS.

Kaleigh Levine was running drills in the gym with her lacrosse team at Notre Dame College in South Euclid, Ohio, when everything turned black.

“The coach wanted me to get back in the line, but I couldn’t see,” she remembered.

Her vision returned after a few minutes, but several months and a half-dozen medical specialists later, the 20-year-old goalie was diagnosed with a mysterious condition known as POTS.

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COVID-19 ‘Radically’ Changed the Leading Causes of Death

COVID-19 became the second leading cause of death globally in the year after it was declared a pandemic, according to a study published in the Lancet.

While heart disease remained the top killer, COVID “radically altered” the main five causes of death for the first time in 30 years, displacing stroke, the publication said. In 2021, 94 in every 100,000 people died from COVID, on an age-standardized basis.

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Researchers say more support, education needed to help B.C. long-COVID patients

Better long-COVID awareness, education and support are needed for patients, according to Simon Fraser University researchers who conducted a study on the topic.

More education for health-care workers, including doctors and nurses, is one of the recommendations made in a report done by the SFU-based Pacific Institute on Pathogens, Pandemics and Society.

The report includes findings from two focus groups of unpaid caregivers, professional care providers, long-COVID researchers and people living with long COVID, identified as “longhaulers.”

“It’s an invisible and new condition,” said Kayli Jamieson, a longhauler who co-led the focus groups as part of a larger study with Kaylee Byers, an assistant professor in SFU’s Faculty of Health Sciences. “Many people don’t believe that long COVID is real or exists. Unfortunately, that permeates through the healthcare system.”

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More awareness and investment needed to support people with long COVID: SFU report

It’s an invisible and new condition. Many people don’t believe that long COVID is real or exists. And unfortunately, that permeates through the healthcare system. Even outside of the medical system, there is a broader societal awareness that is lacking.

— Kayli Jamieson
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Discovery of how COVID-19 virus replicates opens door to new antiviral therapies

A new study, looking at the replication stage of the SARS-CoV-2 virus that causes COVID-19, discovered important mechanisms in its replication that could be the foundation for new antiviral therapies.

The study, which set out to investigate how the SARS-CoV-2 virus replicates once it enters the cells, has made surprising discoveries that could be the foundation for future antiviral therapies. It also has important theoretical implications as the replication of the SARS-CoV-2 virus has, so far, received less attention from researchers.

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Long COVID still has no cure — so these patients are turning to research

When Lisa McCorkell got COVID-19 in March 2020, her symptoms were mild. Her physicians told her to isolate from others and that she would recover in a few weeks. But the weeks stretched into months and McCorkell, who was working on a master’s degree in public policy at the University of California, Berkeley, started having debilitating and bewildering symptoms: fatigue, dizziness and shortness of breath. Previously an avid runner, McCorkell found her heart racing from simple efforts.

She struggled to find an explanation, and soon realized that her physicians didn’t know any more about her condition than she did. To complicate matters, the limited availability of high-quality testing for the coronavirus SARS-CoV-2 in the early days of the pandemic left many of her doctors wondering whether her symptoms were really due to COVID-19 at all. “I didn’t have health-care providers that took me seriously,” McCorkell says. “That largely pushed me out of the health-care system.”

McCorkell turned instead to those who were experiencing the same puzzling symptoms and frustrations, joining a support group for people with what would eventually be called long COVID. As they compared notes, McCorkell and a handful of others — many of whom had research experience — realized that the information they were sharing might be helpful not only for those with long COVID, but also for those looking to study the condition. So, they founded a non-profit organization, called the Patient-Led Research Collaborative (PLRC), to design, provide advice on and even fund basic and clinical research into long COVID and other chronic illnesses.

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COVID-19 research: Study reveals new details about potentially deadly inflammation

A recent USC study provides new information about why SARS-CoV-2, the virus behind the COVID-19 pandemic, may elicit mild symptoms at first but then, for a subset of patients, turn potentially fatal a week or so after infection. The researchers showed that distinct stages of illness correspond with the coronavirus acting differently in two different populations of cells.

The study, published in Nature Cell Biology, may provide a roadmap for addressing cytokine storms and other excessive immune reactions that drive serious COVID-19.

The team found that when SARS-CoV-2 infects its first-phase targets, cells in the lining of the lung, two viral proteins circulate within those cells—one that works to activate the immune system and a second that, paradoxically, blocks that signal, resulting in little or no inflammation.

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Almost one-in-five suffering from long COVID

A study of more than 11,000 Australians who tested positive to COVID-19 in 2022 has revealed almost one-in-five were still experiencing ongoing symptoms three months after their initial diagnosis, according to new research from The Australian National University (ANU).

The study was conducted in Western Australia (WA), with participants drawn from the almost 71,000 adults who tested positive to COVID-19 in WA between 16 July 2022 and 3 August 2022.

Lead researcher, Dr Mulu Woldegiorgis, said the results show the risk of developing long COVID from the Omicron variant is higher than previously thought.

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Omicron linked to more long COVID-19 cases: study

The Omicron coronavirus variant could be causing more cases of long COVID than earlier versions of the disease, scientists say.

A study of more than 11,000 Western Australians infected in 2022 found almost one in five continued to suffer symptoms three months after they initially tested positive.

Epidemiologist Mulu Woldegiorgis said the findings show the Omicron variant puts patients at greater risk of developing long COVID than previously thought.

“It is more than double the prevalence reported in a review of Australian data from earlier in the pandemic, and higher than similar studies done in the UK and Canada,” she said on Thursday.

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Study: Kids with COVID but no symptoms play key role in household spread

A study today in Clinical Infectious Diseases conducted across 12 tertiary care pediatric hospitals in Canada and the United States shows that asymptomatic children with COVID-19, especially preschoolers, contribute significantly to household transmission.

The researchers discovered that 10.6% of exposed household contacts developed symptomatic illness within 14 days of exposure to asymptomatic test-positive children, a rate higher than expected.

“We determined that the risk of developing symptomatic illness within 14 days was 5 times greater among household contacts of asymptomatic SARS-CoV-2–positive children,” the authors wrote.

They also found that 6 of 77 asymptomatic SARS-CoV-2–infected children during a 3-month follow-up developed long COVID, or 7.8% of them.

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Long Covid: Teachers, healthcare workers most vulnerable occupations, report finds

Some people who had Long Covid early in 2020 are still not well. So the experience of being not listened to and not believed has been very harmful for them alongside the very considerable health impacts that they’ve had from Long Covid. […] The cost of inaction is going to be very high and that’s going to be a human cost and a financial cost.

— Lead author Amanda Kvalsvig
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Cardiovascular risks and COVID-19: New research confirms the benefits of vaccination

COVID-19 is a respiratory disease. Yet, from the earliest days of the pandemic, the cardiovascular risks associated with SARS-CoV-2 infection were clear: individuals with severe cases of COVID-19 often died from cardiovascular complications, and those with pre-existing cardiovascular disease were more likely to have severe illness or die.

In short, the cardiovascular system has played a central role in COVID-19 since the beginning.

It is not surprising that as debate over COVID-19 and vaccines flared that cardiovascular disease was a central issue. Those opposed to vaccination often make claims of cardiovascular risks that exceed any benefits. But when data on COVID-19, vaccines and cardiovascular health are reviewed, the conclusions are clear: vaccines are safe and effective at reducing the cardiovascular complications that are a hallmark of COVID-19.

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COVID Linked to Lower IQ, Poor Memory and Other Negative Impacts on Brain Health

Taken together, these studies show that COVID-19 poses a serious risk to brain health, even in mild cases, and the effects are now being revealed at the population level. […]

The growing body of research now confirms that COVID-19 should be considered a virus with a significant impact on the brain. The implications are far-reaching, from individuals experiencing cognitive struggles to the potential impact on populations and the economy.

— Dr. Ziyad Al-Aly
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