Health
U.S. CDC backs previous advice for 5-day isolation; no test needed
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The U.S. Centers for Disease Control and Prevention (CDC) on Tuesday backed its week-old guidance for people seeking to end their COVID-19 isolation at five days, adding they could take a rapid antigen test if they want to and can access one, but is not requiring that.
The agency had been pressured by health experts to institute a test requirement after it cut in half its guidance last week for people to isolate after a COVID-19 infection to 5 days from 10. It said the move was based on science around transmission of the virus.
On Tuesday, the CDC added an explanation on its website, saying that a review of 113 studies from 17 countries showed that most transmission occurs early in the course of infection. It said the average period of infectiousness and risk of transmission was “between 2-3 days before and 8 days after symptom onset.”
Dr. Anthony Fauci, the nation’s top infectious disease official and President Joe Biden’s chief medical adviser, in television interviews on Sunday said officials were considering asking people to get tested after a five-day quarantine period.
The agency’s new advice stops short of mandating or recommending the test.
“If an individual has access to a test and wants to test, the best approach is to use an antigen test towards the end of the 5-day isolation period,” the agency said.
The isolation period should be followed by strict mask use for an additional five days, the CDC said last week and again on Tuesday. However, if an individual tests positive after 5 days, they should isolate for the full 10 days, it said.
The highly transmissible Omicron variant of the coronavirus has spread rapidly, leading to worker shortages at airlines, schools and businesses. Delta Airlines and others had publicly pressured the CDC to cut the isolation period. The CDC subsequently shortened the recommended isolation time.
Earlier on Tuesday, U.S. Surgeon General Vivek Murthy told CNN that the CDC had heard the complaints.
“They have certainly received feedback and questions about the role of testing in shortening that quarantine period and they’re actually working right now on issuing a clarification on that,” he said.
The policy is in line with comments CDC Director Rochelle Walensky made late on Monday.
If people have access to a rapid antigen test, they can go ahead and take it five days after testing positive if their symptoms are gone and they feel well, she told CBS’ “The Late Show” program.
“If it’s positive, stay home for another five days,” she said.
“If it’s negative, I would say you still really need to wear a mask” because the infection could still spread, she added.
“You still should probably not visit grandma, you shouldn’t get on an airplane and you still should be pretty careful when you’re with other people.”
(Reporting by Susan Heavey, Doina Chiacu and Leroy Leo; Editing by Nick Zieminski and Bill Berkrot)
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Grande Prairie RCMP issued a warning Friday after it was revealed fentanyl linked to a deadly overdose was mixed with a chemical that doesn’t respond to naloxone treatment.
The drugs were initially seized on Feb. 28 after a fatal overdose, and this week, Health Canada reported back to Mounties that the fentanyl had been mixed with Bromazolam, which is a benzodiazepine.
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Mounties say this is the first recorded instance of Bromazolam in Alberta. The drug has previously been linked to nine fatal overdoses in New Brunswick in 2022.
The pills seized in Alberta were oval-shaped and stamped with “20” and “SS,” though Mounties say it can come in other forms.
Naloxone treatment, given in many cases of opioid toxicity, is not effective in reversing the effects of Bromazalam, Mounties said, and therefore, any fentanyl mixed with the benzodiazepine “would see a reduced effectiveness of naloxone, requiring the use of additional doses and may still result in a fatality.”
From January to November of last year, there were 1,706 opioid-related deaths in Alberta, and 57 linked to benzodiazepine, up from 1,375 and 43, respectively, in 2022.
Mounties say officers responded to about 1,100 opioid-related calls for service, last year with a third of those proving fatal. RCMP officers also used naloxone 67 times while in the field, a jump of nearly a third over the previous year.
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Health
CFIA continues surveillance for HPAI in cattle, while sticking with original name for disease – RealAgriculture
The Canada Food Inspection Agency will continue to refer to highly pathogenic avian influenza in cattle as HPAI in cattle, and not refer to it as bovine influenza A virus (BIAV), as suggested by the American Association of Bovine Practitioners earlier this month.
Dr. Martin Appelt, senior director for the Canadian Food Inspection Agency, in the interview below, says at this time Canada will stick with “HPAI in cattle” when referencing the disease that’s been confirmed in dairy cattle in multiple states in the U.S.
The CFIA’s naming policy is consistent with the agency’s U.S. counterparts’, as the U.S. Animal and Plant Health Inspection Service has also said it will continue referring to it as HPAI or H5N1.
Appelt explains how the CFIA is learning from the U.S. experience to-date, and how it is working with veterinarians across Canada to stay vigilant for signs of the disease in dairy and beef cattle.
As of April 19, there has not been a confirmed case of HPAI in cattle in Canada. Appelt says it’s too soon to say if an eventual positive case will significantly restrict animal movement, as is the case with positive poultry cases.
This is a major concern for the cattle industry, as beef cattle especially move north and south across the U.S. border by the thousands. Appelt says that CFIA will address an infection in each species differently in conjunction with how the disease is spread and the threat to neighbouring farms or livestock.
Currently, provincial dairy organizations have advised producers to postpone any non-essential tours of dairy barns, as a precaution, in addition to other biosecurity measures to reduce the risk of cattle contracting HPAI.
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Health
Toronto reports 2 more measles cases. Use our tool to check the spread in Canada – Toronto Star
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Canada has seen a concerning rise in measles cases in the first months of 2024.
By the third week of March, the country had already recorded more than three times the number of cases as all of last year. Canada had just 12 cases of measles in 2023, up from three in 2022.
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