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Brain fog and other long COVID symptoms affect millions. New treatment studies bring hope

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WASHINGTON (AP) — The National Institutes of Health is beginning a handful of studies to test possible treatments for long COVID, an anxiously awaited step in U.S. efforts against the mysterious condition that afflicts millions.

Monday’s announcement from the NIH’s $1.15 billion RECOVER project comes amid frustration from patients who’ve struggled for months or even years with sometimes-disabling health problems — with no proven treatments and only a smattering of rigorous studies to test potential ones.

“This is a year or two late and smaller in scope than one would hope but nevertheless it’s a step in the right direction,” said Dr. Ziyad Al-Aly of Washington University in St. Louis, who isn’t involved with NIH’s project but whose own research highlighted long COVID’s toll. Getting answers is critical, he added, because “there’s a lot of people out there exploiting patients’ vulnerability” with unproven therapies.

Scientists don’t yet know what causes long COVID, the catchall term for about 200 widely varying symptoms. Between 10% and 30% of people are estimated to have experienced some form of long COVID after recovering from a coronavirus infection, a risk that has dropped somewhat since early in the pandemic.

“If I get 10 people, I get 10 answers of what long COVID really is,” U.S. Health and Human Services Secretary Xavier Becerra said.

That’s why so far the RECOVER initiative has tracked 24,000 patients in observational studies to help define the most common and burdensome symptoms — findings that now are shaping multipronged treatment trials. The first two will look at:

— Whether taking up to 25 days of Pfizer’s antiviral drug Paxlovid could ease long COVID, because of a theory that some live coronavirus, or its remnants, may hide in the body and trigger the disorder. Normally Paxlovid is used when people first get COVID-19 and for just five days.

— Treatments for “brain fog” and other cognitive problems. They include Posit Science Corp.’s BrainHQ cognitive training program, another called PASC-Cognitive Recovery by New York City’s Mount Sinai Health System, and a Soterix Medical device that electrically stimulates brain circuits.

Two additional studies will open in the coming months. One will test treatments for sleep problems. The other will target problems with the autonomic nervous system — which controls unconscious functions like breathing and heartbeat — including the disorder called POTS.

A more controversial study of exercise intolerance and fatigue also is planned, with NIH seeking input from some patient groups worried that exercise may do more harm than good for certain long COVID sufferers.

The trials are enrolling 300 to 900 adult participants for now but have the potential to grow. Unlike typical experiments that test one treatment at a time, these more flexible “platform studies” will let NIH add additional potential therapies on a rolling basis.

“We can rapidly pivot,” Dr. Amy Patterson with the NIH explained. A failing treatment can be dropped without ending the entire trial and “if something promising comes on the horizon, we can plug it in.”

The flexibility could be key, according to Dr. Anthony Komaroff, a Harvard researcher who isn’t involved with the NIH program but has long studied a similarly mysterious disorder known as chronic fatigue syndrome or ME/CFS. For example, he said, the Paxlovid study “makes all sorts of sense,” but if a 25-day dose shows only hints of working, researchers could extend the test to a longer course instead of starting from scratch.

Komaroff also said that he understands people’s frustration over the wait for these treatment trials, but believes NIH appropriately waited “until some clues came in about the underlying biology,” adding: “You’ve got to have targets.”

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The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.

Lauran Neergaard, The Associated Press

 

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

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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.

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

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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.

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

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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.

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