Health
Vitamin D supplement 'overdosing' is possible and harmful, warn doctors – Medical Xpress


‘Overdosing’ on vitamin D supplements is both possible and harmful, warn doctors in the journal BMJ Case Reports after they treated a man who needed hospital admission for his excessive vitamin D intake.
‘Hypervitaminosis D’, as the condition is formerly known, is on the rise and linked to a wide range of potentially serious health issues, they highlight.
The case concerns a middle-aged man who was referred to hospital by his family doctor after complaining of recurrent vomiting, nausea, abdominal pain, leg cramps, tinnitus (ringing in the ear), dry mouth, increased thirst, diarrhea, and weight loss (28 lbs or 12.7 kg).
These symptoms had been going on for nearly 3 months, and had started around 1 month after he began an intensive vitamin supplement regimen on the advice of a nutritional therapist.
The man had had various health issues, including tuberculosis, an inner ear tumor (left vestibular schwannoma), which had resulted in deafness in that ear, a build-up of fluid in the brain (hydrocephalus), bacterial meningitis, and chronic sinusitis.
He had been taking high doses of more than 20 over the counter supplements every day containing: vitamin D 50000 mg—the daily requirement is 600 mg or 400 IU; vitamin K2 100 mg (daily requirement 100–300 μg); vitamin C, vitamin B9 (folate) 1000 mg (daily requirement 400 μg); vitamin B2 (riboflavin), vitamin B6, omega-3 2000 mg twice daily (daily requirement 200–500 mg), plus several other vitamin, mineral, nutrient, and probiotic supplements.
Once symptoms developed, he stopped taking his daily supplement cocktail, but his symptoms didn’t go away.
The results of blood tests ordered by his family doctor revealed that he had very high levels of calcium and slightly raised levels of magnesium. And his vitamin D level was 7 times over the level required for sufficiency.
The tests also indicated that his kidneys weren’t working properly (acute kidney injury). The results of various X-rays and scans to check for cancer were normal.
The man stayed in hospital for 8 days, during which time he was given intravenous fluids to flush out his system and treated with bisphosphonates—drugs that are normally used to strengthen bones or lower excessive levels of calcium in the blood.
Two months after discharge from hospital, his calcium level had returned to normal, but his vitamin D level was still abnormally high.
“Globally, there is a growing trend of hypervitaminosis D, a clinical condition characterized by elevated serum vitamin D3 levels,” with women, children and surgical patients most likely to be affected, write the authors.
Recommended vitamin D levels can be obtained from the diet (eg wild mushrooms, oily fish), from exposure to sunlight, and supplements.
“Given its slow turnover (half-life of approximately 2 months), during which vitamin D toxicity develops, symptoms can last for several weeks,” warn the authors.
The symptoms of hypervitaminosis D are many and varied, they point out, and are mostly caused by excess calcium in the blood. They include drowsiness, confusion, apathy, psychosis, depression, stupor, coma, anorexia, abdominal pain, vomiting, constipation, peptic ulcers, pancreatitis, high blood pressure, abnormal heart rhythm, and kidney abnormalities, including renal failure.
Other associated features, such as keratopathy (inflammatory eye disease), joint stiffness (arthralgia), and hearing loss or deafness, have also been reported, they add.
This is just one case, and while hypervitaminosis D is on the rise, it is still relatively uncommon, caution the authors.
Nevertheless, complementary therapy, including the use of dietary supplements, is popular, and people may not realize that it’s possible to overdose on vitamin D, or the potential consequences of doing so, they say.
“This case report further highlights the potential toxicity of supplements that are largely considered safe until taken in unsafe amounts or in unsafe combinations,” they conclude.
Vitamin D intoxication and severe hypercalcaemia complicating nutritional supplements misuse, BMJ Case Reports (2022). DOI: 10.1136/bcr-2022-250553
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Vitamin D supplement ‘overdosing’ is possible and harmful, warn doctors (2022, July 5)
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Health
Monkeypox call seen as catch-up bid – Chinadaily.com.cn – China Daily


US’ health emergency declaration may come too late to halt spread, experts say
The administration of US President Joe Biden on Thursday declared the country’s monkeypox outbreak a public health emergency, but many health experts fear that it may be too late to contain the spread of infections.
Criticism of the White House’s response to the disease outbreak has been building, with experts saying the authorities have been slow off the mark in distributing treatments and vaccines.
The White House’s declaration signals that the monkeypox virus now represents a significant risk to citizens. The Secretary of Health and Human Services, Xavier Becerra, is considering a second declaration that would empower federal officials to expedite medical countermeasures, such as other potential treatments and vaccines, without going through comprehensive federal reviews.
That also would allow for greater flexibility in how the current supply of vaccines is administered, Becerra said.
Some 6,600 monkeypox infections have been reported in the United States, a number that has risen sharply over the past weeks.
Lawrence Gostin, a public health law expert at Georgetown University, said the declaration of the health emergency “signals the US government’s seriousness and purpose, and sounds a global alarm”. But he told The Associated Press that the action was overdue.
Gostin said the government has been too cautious and should have declared a nationwide emergency earlier.
On July 23, the World Health Organization declared a global health emergency over the outbreak, with cases in more than 70 countries.
California, Illinois and New York have all made declarations recently, as have New York City, San Francisco and San Diego County.
Since doctors diagnosed the first US case on May 27, the virus has been spreading rapidly in the country, with the highest rates per capita reported in Washington, New York and Georgia.
More than 99 percent of the infections are among men who have sex with men.
The virus is transmitted mostly during close physical contact. So far, no deaths from the disease have been reported in the US.
The country now has the highest case count among nonendemic countries, and the number is expected to rise as surveillance and testing improve.
Monkeypox is endemic in parts of Africa, where people have been infected through bites from rodents or small animals. Classification as endemic means a disease has a constant presence in a population but is not affecting an alarmingly large number of people, as typically seen in a pandemic.
‘Rarely fatal’
On its website, the Centers for Disease Control and Prevention says of the virus: “Monkeypox virus is part of the same family of viruses as variola virus, the virus that causes smallpox. Monkeypox symptoms are similar to smallpox symptoms, but milder, and monkeypox is rarely fatal. Monkeypox is not related to chickenpox.”
There is increasing concern that the US may have lost its chance to contain the monkeypox virus. Some public health experts have pointed fingers at the administration for its slowness in rolling out vaccines and treatments.
“The window for containing monkeypox is rapidly closing,” Gostin warned in an interview with CNN late last month. He had called for the US to declare a national public health emergency and make more vaccine doses available.
“I do think it’s still possible to contain, but it’s also equally possible that this may become endemic in the United States,” he said.
Supplies of a monkeypox vaccine called Jynneos have been limited even as demand surges. The administration has been criticized for moving too slowly to expand the number of doses.
Federal officials have identified about 1.6 million people as being at the highest risk for monkeypox, but the US has received enough Jynneos doses to fully cover only about 550,000 people.
The shortage of vaccines was caused in part because the Department of Health and Human Services failed early on to ask that bulk stocks of the vaccine it already owned be bottled for distribution, reported The New York Times, citing multiple unnamed administration officials familiar with the matter.
The government is now distributing about 1.1 million vaccine doses, less than a third of the 3.5 million that health officials now estimate are needed to fight the outbreak. It does not expect the next delivery, of 500,000 doses, until October.
Health
Health unit to host monkeypox clinic Sunday – BlackburnNews.com


Health unit to host monkeypox clinic Sunday
File photo courtesy of © Can Stock Photo / jbruiz
August 6, 2022 6:00am
The Windsor-Essex County Health Unit is making a limited supply of the monkeypox vaccine available.
The health unit will set up a monkeypox vaccine clinic on Sunday from 11 a.m. to 4 p.m. at Windsor-Essex PrideFest, centred at Lanspeary Park. Acting Medical Officer of Health Doctor Shanker Nesathurai said the clinic will be geared toward high-risk individuals.
“The term is sometimes described as ‘pre-exposure prophylaxis’, and that will be offered at the Pride event this coming weekend,” Nesathurai said during a media briefing Friday morning.
Chief Nursing Officer Felicia Lawal said the health unit will work with PrideFest and Pozitive Pathways to operate the mobile clinic.
“Public health nurses will be available to provide health information and resources on monkeypox, as well as pre-exposure vaccination for those who meet criteria and qualify,” said Lawal.
Nesathurai said the health unit will have about a hundred doses available at the clinic, and that the unit had distributed monkeypox vaccines in the past.
The health unit also emphasized that even though the biggest risk group continues to be men who have sex with men, anyone can get the virus, which can be transmitted through close contact. Nesathurai added that the PrideFest clinic will be the best way to raise as much awareness of the virus as possible, but the health unit is working not to stigmatize any segment of the population.
So far, there has been just one confirmed case of monkeypox in Windsor-Essex.
Complete information about monkeypox and vaccines can be found on the health unit’s official website.
Health
Monkeypox: Concerns over potential further spread in Canada – CTV News


Monkeypox infections continue to rise in Canada as the U.S. and the WHO declare the outbreak an emergency, leaving some experts concerned about the risk of further outbreaks.
There have been fewer than 1,000 confirmed cases in Canada since May, as of Friday. But on a per capita basis, the number of monkeypox cases in total in Canada has surpassed the United States.
On July 27, Chief Public Health Officer Dr. Theresa Tam encouraged those at highest risk from monkeypox to get vaccinated, saying an “urgent” response is needed to address the outbreak.
But even though monkeypox has spread primarily among men who have sex with men, Dr. Donald Vinh, an infectious disease specialist at McGill University Health Centre in Montreal, tells CTV National News that there is a strong chance the infection could spread outside of that community.
“I’m not saying that we have to panic. I think we just need to be prepared that there’s a possibility that this virus could spread to the larger general public, and so we shouldn’t be surprised of that possibility,” he said.
Monkeypox often presents as a flu-like infection with a rash and spreads through close personal contact with someone who is symptomatic.
While monkeypox has been endemic to certain parts of Africa for decades, it has also been neglected, Vinh said.
And while the smallpox vaccine does protect against monkeypox, questions remain over whether those who were inoculated decades ago will still be protected from the disease today.
“And so this is something else that we need to learn, and learn pretty quickly,” Vinh said.
The Biden administration in the U.S. declared monkeypox a public health emergency on Thursday.
This came after the World Health Organization (WHO) declared monkeypox a public health emergency of international concern on July 23.
However, Canada has yet to make a similar declaration
In a statement to CTVNews.ca, a spokesperson for the Public Health Agency of Canada (PHAC) said the Government of Canada “acknowledges the WHO’s determination and recognizes that the global monkeypox outbreak requires an urgent global response.”
The spokesperson said more than 80,000 doses of the smallpox vaccine Imvamune have been sent to provinces and territories.
“PHAC also continues to work closely with international, provincial and territorial health partners to gather information on this evolving outbreak and to determine the best course of action to stop the spread of monkeypox in Canada,” the statement said.
“Canada will also continue to work with the WHO and international partners to strengthen the global response to the current monkeypox outbreak.”
Asked what Canada’s current vaccine stockpile status is, and the ability for Canada to increase its supply through additional procurements, the spokesperson said the agency “does not disclose details concerning medical countermeasures held by the NESS (National Emergency Strategic Stockpile), including types or quantities, due to security implications and requirements.”
At the local level, some are making efforts on the vaccination side.
This weekend, the public health unit in Windsor, Ont., will host its first monkeypox vaccine clinic at Sunday’s Pride event.
But on Friday, Ottawa Public Health announced it had to cancel its monkeypox vaccine clinics for the day “due to an unforeseeable short-term vaccine supply issue.”
Kerry Bowman, an assistant professor in the Temerty Faculty of Medicine at the University of Toronto, said it’s still unclear where the monkeypox outbreak is going, but he believes there is more Canada can do.
“There’s a picture of a lack of clarity as to who’s eligible and the vaccination process itself is quite limited,” Bowman said.
Health officials have recommended vaccinations for high-risk groups, including health-care workers and men who have sex with men and have recently had multiple sexual partners.
But Bowman says he is also concerned about monkeypox spreading to non-human animals.
“I would like to see it contained because my fear is that it will become endemic — embedded — that it will get into non-human species the way I’ve seen it do in Africa, it will just keep circulating and coming back on people regularly,” he said.
With files from CTVNews.ca’s Rachel Aiello, The Associated Press and CNN.
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