What is croup? Mothers can prevent 'barking' cough in children by taking vitamin D supplements - Study Finds | Canada News Media
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What is croup? Mothers can prevent 'barking' cough in children by taking vitamin D supplements – Study Finds

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COPENHAGEN, Denmark — Vitamin D and fish oil supplements could significantly help pregnant women keep their children from developing a common viral chest infection, a new study reveals.

Dr. Nicklas Brustad from Copenhagen University Hospital reports that women taking high doses of these supplements during pregnancy lowered the future risk that their children would develop croup by as much as 40 percent.

Croup is a chest infection that’s common among young children. Although most cases are mild, some toddlers may need hospitalization and mechanical support to breathe. Common symptoms of the illness are a “barking” cough, hoarse voice, and breathing issues.

“There is currently no vaccine against the pathogen that causes this disease. Therefore, other preventive strategies are needed, and measures initiated during pregnancy might be important since croup occurs in babies and young children. For such purpose, there is evidence that both vitamin D and fish oil could have an influence on the immune system,” Dr. Brustad says in a media release.

How much vitamin D should pregnant women take?

The study followed 736 pregnant women, recruited by the Copenhagen Prospective Studies on Asthma in Childhood in 2010. Researchers divided the mothers-to-be into four groups, one taking a high-dose vitamin D supplement (2800 international units daily) and fish oil containing long-chain n-3-polyunsaturated fatty acids (2.4 grams).

The second group took high-dose vitamin D and olive oil, while the third group received a standard dose of vitamin D (400 international units) and fish oil, and the final group took a standard dose and olive oil.

These women all continued taking the supplements from their 24th week of pregnancy until the week after delivery. The groups did not know the amount of vitamin D, fish oil, or olive oil they were taking. Researchers also monitored the children until their third birthday. A doctor formally diagnosed any children who may have been dealing with the symptoms of croup throughout that time. In total, there were 97 cases of croup during the study.

Results reveal that children whose mothers took high doses of vitamin D daily during pregnancy had an 11-percent risk of developing croup after birth. That risk increased to 18 percent if the child’s mother only took standard doses — a 40-percent difference.

Meanwhile, children whose mothers took fish oil supplements also had an 11-percent risk of croup. Those whose mothers took olive oil had a 17-percent risk, a 38-percent difference.

“Our findings suggest that vitamin D and fish oil could be beneficial against childhood croup in sufficiently high doses. These are relatively cheap supplements meaning that this could be a very cost-effective approach to improving young children’s health,” Dr. Brustad reports.

“We are not sure of the exact mechanisms behind the beneficial effects of vitamin D and fish oil, but it could be that they can stimulate the immune system to help babies and young children clear infections more effectively.”

“We know that lung health in babies and young children can be influenced during pregnancy. For example, babies whose mothers smoke tend to have worse lung health. We are increasingly seeing that elements of a mother’s diet can also help or hinder a baby’s lung development,” adds Professor Rory Morty from the University of Heidelberg and chair of European Respiratory Society’s lung and airway developmental biology group.

“This research suggests that taking vitamin D and fish oil supplements during pregnancy could have benefits for babies and young children. We would like to see further research in this area to support these findings as this could lead to new recommendations for supplementation during pregnancy. Pregnant women should always speak to their doctor before taking supplements.”

Prof. Morty did not take part in the research.

Dr. Brustad presented the findings at the European Respiratory Society International Congress.

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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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