The virus that causes COVID-19 can breach the protective blood-retinal barrier, leading to potential long-term consequences in the eye, new research shows.
The blood-retinal barrier is designed to protect our vision from infections by preventing microbial pathogens from reaching the retina where they could trigger an inflammatory response with potential vision loss.
Comments closedIn response to April’s removal of mandatory mask mandates in healthcare settings, BC’s health advocacy group DoNoHarm BC, joined by Protect Our Province BC and Masks4EastVan, are leading a campaign to urge the provincial government to reinstate these protections. The groups say that BC health authorities have ignored warnings about ongoing COVID-19 risks and other respiratory threats like measles and tuberculosis.
The decision to remove mask mandates in healthcare settings was announced by the Ministry of Health, “the peak of the respiratory illness season has passed.” Though COVID-19 levels typically lessen in the spring, COVID-19 has not been established as a seasonal illness.
The Peak reached out to Dr. Karina Zeidler who organizes with DoNoHarm BC and is the co-founder of Protect Our Province BC for more information. Zeidler referenced a research article from BC Medical Journal which noted that “for some of these most vulnerable patients, the air in the hospital can be deadlier than the diagnosis that brought them in.” This is due to hospital acquired infections, which can then lead to COVID-19 deaths.
Comments closedHealth-care workers who pushed back against being forced to get vaccinated against COVID-19 or face losing their jobs have lost in the BC Supreme Court.
In a ruling released Monday, presiding judge Justice Simon R. Coval says the provincial health officer was right in mandating COVID-19 vaccinations for health-care workers.
The three cases in question were brought to court by a nurse practitioner and two doctors, with all three saying they didn’t want to get the shot.
Comments closedThe first study of COVID-19 vaccine effectiveness in a large population of adult heart-failure patients suggests that vaccinated participants are 82% more likely to live longer than their unvaccinated peers, according to an analysis presented over the weekend at the Heart Failure 2024 scientific congress of the European Society of Cardiology (ESC) in Lisbon, Portugal.
Comments closedOne of the most polarizing figures to gain notoriety during what became known as the Freedom Convoy in Ottawa more than two years ago will stand trial Monday, signalling the tail end of criminal proceedings that have dogged hundreds of individuals who participated in the historic protest.
Pat King, from Red Deer, Alta., is facing charges of mischief, intimidation, obstructing police, disobeying a court order and other offences for his role in the protest that gridlocked downtown for nearly a month in early 2022.
Arrested and jailed for five months before his release that summer, King is unlikely to serve more time behind bars if he is found guilty, given laws around credit from time served.
Comments closedThe United Conservative Party’s board is urging Premier Danielle Smith to reform COVID vaccine policy because the directors are worried about the safety of mRNA vaccines for kids, the party president says.
“We have serious concerns about them for children,” Rob Smith, the UCP president, told CBC News in an interview Friday.
“I would say that the board of directors’ position is that if parents are going to get their children vaccinated, they need to be very, very sure that they know what they’re doing.”
Comments closedCanada’s lull in COVID-19 cases faces a potential disruption with the emergence of a new family of subvariants, playfully dubbed the ‘FLiRT’ variants.
These genetic cousins, originating from JN.1, the Omicron subvariant that fuelled the winter surge, are now spreading nationwide, with one variant, KP.2, quickly gaining dominance in Canada.
KP.2 is the dominant subvariant of the JN.1 strain, explained Gerald Evans, an infectious disease specialist at Queen’s University in Kingston, Ont. As of April 28, national data shows that KP.2 accounted for 26.6 per cent of all COVID-19 cases in Canada, surpassing other JN.1 subvariants.
Comments closedDoctors say COVID-19 cases are spreading rapidly in Alberta, putting strain on hospitals. Chelan Skulski has the details.
Comments closedAfter trending downward for several months, COVID-19 is on the upswing in Alberta once again.
The province’s respiratory virus dashboard shows a number of key indicators, including case counts, hospitalization numbers and positivity rates, are ticking up.
“Many jurisdictions in Canada have seen a slight bump in late April in the number of COVID cases, the positivity rate and also in their wastewater monitoring,” said Dr. Dan Gregson, an infectious diseases specialist in the Cumming School of Medicine at the University of Calgary.
Comments closedThe Canadian government plans to stop supplying provinces and territories with free COVID-19 rapid tests, which has an infection control epidemiologist worried about two-tiered health care, increased spread and increased health-care costs.
“The federal government continues to support Canada’s rapid testing needs while the federal inventory remains,” Health Canada spokesperson Nicholas Janveau told CBC News.
Comments closedA new study has analysed 26 RATs from Australia and Canada, finding only six could effectively detect the lowest concentrations of COVID-19.
Patients across the globe have come to rely on rapid antigen tests (RATs) to confirm a COVID-19 diagnosis, but a new Australian study has revealed most are not producing accurate results.
Researchers from James Cook University (JCU) say they were left ‘shocked’ after an analysis of 26 RATs from Australia and Canada found just six were effective at detecting the lowest concentration of COVID-19.
One Canadian test failed to detect the COVID-19 protein entirely at any level of concentration.
Comments closedFour years ago this week, there was only one subject on Canadians’ minds: the incipient COVID-19 pandemic. Schools and businesses were locked down in most of the country. The death count was appalling: close to 1,900 in the first full week of the month. In all, about 4,300 Canadians would die that May – with far more brutal waves of infection and death to come.
The story is much different today. Thanks to the rapid development, approval and delivery of vaccines – an amazing human accomplishment that isn’t celebrated enough – COVID-19 has been brought to heel and is now largely seen as just one more viral disease, like the flu or common cold. The availability of home testing kits means most people who become infected by the latest variants of the SARS-CoV-2 virus can manage the disease at home, and never trouble the health care system.
That’s good, but it hides the troubling fact that it is difficult to discern coherent policies at any level of government for continuing the fight against COVID-19, for dealing with its long-term effects, or for preparing for another pandemic.
Comments closedToday, researchers from the University of Minnesota published evidence that the common diabetes drug metformin decreases the amount of SARS-CoV-2 in the body and helps reduce the risk of rebound symptoms if given early in the course of non-severe illness.
The study, published in Clinical Infectious Diseases, suggests metformin may also help prevent long COVID.
The researchers tested metformin against a placebo in 999 adults infected with COVID-19. More than 50% of the study enrollees were vaccinated, and treatment took place when the Omicron variant was the most dominant strain in the United States.
Comments closedThe National Advisory Committee on Immunization (NACI) released its updated guidelines on Friday on the use of COVID-19 vaccines during the upcoming fall season.
Although COVID-19 rates are currently low across the country, NACI said it anticipates a surge in activity during the fall and winter months, aligning with patterns seen in previous years and consistent with the behaviour of other respiratory viruses.
“As COVID-19 activity is expected during the upcoming fall and winter months, and COVID-19 disease can compound the impact on the health system of other fall and winter respiratory viruses, NACI continues to provide early guidance on the use of COVID-19 vaccines to facilitate planning by provinces and territories,” the guidelines state.
Comments closedA ground-breaking study by James Cook University researchers has produced damning findings on several COVID-19 Rapid Antigen Tests (RATs) available in Australia and overseas.
The new joint study by JCU and National Research Council Canada analysed 16 RATs approved by Australia’s Therapeutic Goods Administration (TGA) and 10 by Health Canada, using a JCU-developed COVID-19 protein and its Canadian counterpart as reference materials.
Out of the total 26 RATs compared, only six were found to be effective at detecting the lowest concentration of the COVID-19 reference proteins in the dilution series used for benchmarking.
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