Long COVID brain fog found similar to 'chemo brain'; clip-on device shows promise in virus detection | Canada News Media
Connect with us

Health

Long COVID brain fog found similar to ‘chemo brain’; clip-on device shows promise in virus detection

Published

 on

The following is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that has yet to be certified by peer review.

Long COVID “brain fog” shares features with “chemo brain”

The “brain fog” reported by some people after COVID-19 shows striking similarities to the condition known as “chemo brain” – the mental cloudiness some people experience during and after cancer treatment, according to new research.

People who had COVID-19 “frequently experience lingering neurological symptoms, including impairment in attention, concentration, speed of information processing and memory,” similar to patients with cancer therapy-related cognitive impairment that is known to involve inflammation of the brain, the researchers explained in a report posted on Monday on bioRxiv ahead of peer review. In the brains of patients who died of COVID-19, the researchers found evidence of inflammation along with high levels of inflammatory proteins, one of which, CCL11, is linked with impairments in nervous system health and cognitive function.

Among 63 patients with so-called long COVID, the researchers found high CCL11 levels in the 48 with lingering cognitive symptoms, but not in the 15 without cognitive issues. They speculate that treatments showing promise for cancer therapy-related cognitive impairment might be helpful for COVID-19 patients with similar problems. But they would need to be tested specifically for long COVID.

Experimental clip-on device finds virus particles in air

An small experimental device designed to be attached to clothing may be able to tell whether the wearer has been exposed to SARS-CoV-2 particles in the air, researchers said.

The device, called the Fresh Air Clip, continually collects airborne aerosols, including droplets carrying the virus, on a silicone surface, according to a report published on Tuesday in Environmental Science & Technology Letters. After testing the device in laboratory experiments, the researchers distributed them to 62 volunteers who each wore the monitors for five days. PCR analysis detected the coronavirus in five of the clips, four of which had been worn by restaurant servers and one by a staff person at a homeless shelter.

More research is needed to confirm its effectiveness before the device can be sold commercially, the researchers noted. But it could prove useful in “real-world high-risk settings,” helping to improve early detection of potential cases and to identify indoor areas that pose high exposure risks.

Researchers plan for reusing hospital-grade masks

A type of mask used by healthcare providers to protect themselves from the coronavirus can be reprocessed to augment supplies, researchers believe.

Unlike cloth and surgical masks, the N95 respirators are designed to achieve a very snug facial fit, with edges that form a tight seal around the nose and mouth. Early in the pandemic, shortages of N95 masks forced personnel to re-use them or to use masks that provided less protection. In a paper in the American Journal of Infection Control, researchers report that the masks can be safely re-sterilized with a standard decontamination approach involving vaporized hydrogen peroxide and still maintain their effectiveness for up to 25 cycles of re-use.

Successful, large-scale implementation of N95 respirator reprocessing would require significant coordination and logistical support to ensure disinfection and safety, they said. It would be wise to plan now for “ways to scale and translate this capability to smaller hospitals and resource-limited healthcare settings that could benefit just as much – perhaps more – from this type of personal protective equipment reprocessing in future disaster scenarios,” coauthor Dr. Christina Yen of Beth Israel Deaconess Medical Center in Boston, said in a press statement.

Click for a Reuters graphic https://tmsnrt.rs/3c7R3Bl on vaccines in development.

 

(Reporting by Nancy Lapid; Editing by Bill Berkrot)

Health

Canada to donate up to 200,000 vaccine doses to combat mpox outbreaks in Africa

Published

 on

 

The Canadian government says it will donate up to 200,000 vaccine doses to fight the mpox outbreak in Congo and other African countries.

It says the donated doses of Imvamune will come from Canada’s existing supply and will not affect the country’s preparedness for mpox cases in this country.

Minister of Health Mark Holland says the donation “will help to protect those in the most affected regions of Africa and will help prevent further spread of the virus.”

Dr. Madhukar Pai, Canada research chair in epidemiology and global health, says although the donation is welcome, it is a very small portion of the estimated 10 million vaccine doses needed to control the outbreak.

Vaccine donations from wealthier countries have only recently started arriving in Africa, almost a month after the World Health Organization declared the mpox outbreak a public health emergency of international concern.

A few days after the declaration in August, Global Affairs Canada announced a contribution of $1 million for mpox surveillance, diagnostic tools, research and community awareness in Africa.

On Thursday, the Africa Centres for Disease Control and Prevention said mpox is still on the rise and that testing rates are “insufficient” across the continent.

Jason Kindrachuk, Canada research chair in emerging viruses at the University of Manitoba, said donating vaccines, in addition to supporting surveillance and diagnostic tests, is “massively important.”

But Kindrachuk, who has worked on the ground in Congo during the epidemic, also said that the international response to the mpox outbreak is “better late than never (but) better never late.”

“It would have been fantastic for us globally to not be in this position by having provided doses a much, much longer time prior than when we are,” he said, noting that the outbreak of clade I mpox in Congo started in early 2023.

Clade II mpox, endemic in regions of West Africa, came to the world’s attention even earlier — in 2022 — as that strain of virus spread to other countries, including Canada.

Two doses are recommended for mpox vaccination, so the donation may only benefit 100,000 people, Pai said.

Pai questioned whether Canada is contributing enough, as the federal government hasn’t said what percentage of its mpox vaccine stockpile it is donating.

“Small donations are simply not going to help end this crisis. We need to show greater solidarity and support,” he said in an email.

“That is the biggest lesson from the COVID-19 pandemic — our collective safety is tied with that of other nations.”

This report by The Canadian Press was first published Sept. 13, 2024.

Canadian Press health coverage receives support through a partnership with the Canadian Medical Association. CP is solely responsible for this content.

The Canadian Press. All rights reserved.

Source link

Continue Reading

Health

How many Nova Scotians are on the doctor wait-list? Number hit 160,000 in June

Published

 on

 

HALIFAX – The Nova Scotia government says it could be months before it reveals how many people are on the wait-list for a family doctor.

The head of the province’s health authority told reporters Wednesday that the government won’t release updated data until the 160,000 people who were on the wait-list in June are contacted to verify whether they still need primary care.

Karen Oldfield said Nova Scotia Health is working on validating the primary care wait-list data before posting new numbers, and that work may take a matter of months. The most recent public wait-list figures are from June 1, when 160,234 people, or about 16 per cent of the population, were on it.

“It’s going to take time to make 160,000 calls,” Oldfield said. “We are not talking weeks, we are talking months.”

The interim CEO and president of Nova Scotia Health said people on the list are being asked where they live, whether they still need a family doctor, and to give an update on their health.

A spokesperson with the province’s Health Department says the government and its health authority are “working hard” to turn the wait-list registry into a useful tool, adding that the data will be shared once it is validated.

Nova Scotia’s NDP are calling on Premier Tim Houston to immediately release statistics on how many people are looking for a family doctor. On Tuesday, the NDP introduced a bill that would require the health minister to make the number public every month.

“It is unacceptable for the list to be more than three months out of date,” NDP Leader Claudia Chender said Tuesday.

Chender said releasing this data regularly is vital so Nova Scotians can track the government’s progress on its main 2021 campaign promise: fixing health care.

The number of people in need of a family doctor has more than doubled between the 2021 summer election campaign and June 2024. Since September 2021 about 300 doctors have been added to the provincial health system, the Health Department said.

“We’ll know if Tim Houston is keeping his 2021 election promise to fix health care when Nova Scotians are attached to primary care,” Chender said.

This report by The Canadian Press was first published Sept. 11, 2024.

The Canadian Press. All rights reserved.

Source link

Continue Reading

Health

Newfoundland and Labrador monitoring rise in whooping cough cases: medical officer

Published

 on

 

ST. JOHN’S, N.L. – Newfoundland and Labrador‘s chief medical officer is monitoring the rise of whooping cough infections across the province as cases of the highly contagious disease continue to grow across Canada.

Dr. Janice Fitzgerald says that so far this year, the province has recorded 230 confirmed cases of the vaccine-preventable respiratory tract infection, also known as pertussis.

Late last month, Quebec reported more than 11,000 cases during the same time period, while Ontario counted 470 cases, well above the five-year average of 98. In Quebec, the majority of patients are between the ages of 10 and 14.

Meanwhile, New Brunswick has declared a whooping cough outbreak across the province. A total of 141 cases were reported by last month, exceeding the five-year average of 34.

The disease can lead to severe complications among vulnerable populations including infants, who are at the highest risk of suffering from complications like pneumonia and seizures. Symptoms may start with a runny nose, mild fever and cough, then progress to severe coughing accompanied by a distinctive “whooping” sound during inhalation.

“The public, especially pregnant people and those in close contact with infants, are encouraged to be aware of symptoms related to pertussis and to ensure vaccinations are up to date,” Newfoundland and Labrador’s Health Department said in a statement.

Whooping cough can be treated with antibiotics, but vaccination is the most effective way to control the spread of the disease. As a result, the province has expanded immunization efforts this school year. While booster doses are already offered in Grade 9, the vaccine is now being offered to Grade 8 students as well.

Public health officials say whooping cough is a cyclical disease that increases every two to five or six years.

Meanwhile, New Brunswick’s acting chief medical officer of health expects the current case count to get worse before tapering off.

A rise in whooping cough cases has also been reported in the United States and elsewhere. The Pan American Health Organization issued an alert in July encouraging countries to ramp up their surveillance and vaccination coverage.

This report by The Canadian Press was first published Sept. 10, 2024.

The Canadian Press. All rights reserved.

Source link

Continue Reading

Trending

Exit mobile version