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CDC updates guidance to warn coronavirus can be transmitted through the air by breathing — but then removes it – CBS News

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The Centers for Disease Control and Prevention updated its COVID-19 guidance to acknowledge the risk that the coronavirus can be transmitted through airborne respiratory particles — but then edited its website again Monday morning to take that information down, saying it was still being reviewed.

Before it was taken down, the updated guidance said the coronavirus is most commonly spread “through respiratory droplets or small particles, such as those in aerosols,” which are produced when an infected person coughs, sneezes, sings, talks or even just breathes, and which can remain airborne for a period of time. The virus can then spread to other people who inhale it into their airways.

Many scientists and health experts have been warning for months that COVID-19 can spread through airborne respiratory particles, not just through larger droplets from an infected person coughing or sneezing nearby.

“There is growing evidence that droplets and airborne particles can remain suspended in the air and be breathed in by others, and travel distances beyond 6 feet (for example, during choir practice, in restaurants, or in fitness classes),” the CDC’s updated, but then deleted, guidance said. “In general, indoor environments without good ventilation increase this risk.”

But on Monday — as the number of U.S. deaths from COVID-19 approached 200,000 — the CDC updated the page again to remove the information about the risk of airborne transmission, with a disclaimer at the top: “A draft version of proposed changes to these recommendations was posted in error to the agency’s official website,” the notice read. “CDC is currently updating its recommendations regarding airborne transmission of SARS-CoV-2 (the virus that causes COVID-19). Once this process has been completed, the update language will be posted.”

When asked by CBS News what the issues were with the language on airborne transmission, CDC spokesman Tom Skinner said, “It’s poorly written. The bottom line is aerosol transmission [is] possible but not the main way that [it] spreads.”

CBS News chief medical correspondent Dr. Jon LaPook explained, “It may not be the main way it spreads, but there’s good evidence that the virus can spread through the air under certain circumstances at distances greater than 6 feet.”

The page still states that the virus is spread “through respiratory droplets produced when an infected person coughs, sneezes, or talks,” but the information about tiny airborne droplets, like those in aerosols, has been removed. The page also no longer lists breathing as a way to transmit the virus. 

Instead, the page reads: “These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs.” The Monday update also says COVID-19 is primarily spread between people who have close contact (within 6 feet), and includes that it may be spread by people who are not showing symptoms. 

In July, the World Health Organization (WHO) acknowledged the airborne transmission of “micro-droplets” as a possible cause of COVID-19 infections. WHO’s acknowledgment came after 239 scientists signed an open letter about the risk of airborne transmission. 

Very few diseases — tuberculosis, chicken pox and measles — have been deemed transmissible through aerosols. However, Japan, for example, had been operating for months on the assumption that tiny, aerosolized particles in crowded settings were fueling the spread of the coronavirus. Back in February, Japan adopted a strategy to fight airborne transmission of COVID-19 by telling residents to avoid “the three Cs” — cramped spaces, crowded areas and close conversation.

The CDC’s guidance also explains that the closer and longer a person with COVID-19 is with others, the higher the risk of spreading the virus to those people. 

On Friday, the CDC also updated its testing guidance after nearly a month of controversy over the role of political interference from officials at the Department of Health and Human Services overriding the CDC’s scientists. In late August, the CDC’s website was quietly revised to say that people who had been exposed to someone with coronavirus but weren’t showing symptoms might not need testing. That caused an uproar among medical experts because asymptomatic people can easily spread the virus to others.

The new guidance now says, “Due to the significance of asymptomatic and pre-symptomatic transmission, this guidance further reinforces the need to test asymptomatic persons, including close contacts of a person with documented SARS-CoV-2 infection.”

Many public health experts have long advised that even asymptomatic people should be tested if they suspect they’ve been in contact with someone who was infected. In July, a model published by the National Academy of Sciences, showed an estimated 50% of coronavirus cases may be spread by people who aren’t showing symptoms. 

Lucy Craft contributed to this report.

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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.

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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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