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What does the COVID-19 vaccine actually do? – News 1130

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3 years ago

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NEWS 1130 is working hard to get you the information you need about the COVID-19 pandemic.

When you have questions, NEWS 1130 Gets Answers.

Question:

What does the COVID-19 vaccine actually do? Does it prevent you from transmitting the coronavirus?

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Answer:

In the simplest terms, the vaccines train your body’s immune system to recognize and block the virus which causes COVID-19.

According to the World Health Organization, these vaccines work in different ways — such as an inactivated virus vaccine, which uses a dormant or weakened version of the virus to generate an immune response, but not give you the disease.

The WHO notes others use more scientific designs, such as protein-based — as well as RNA and DNA approaches.

  • Protein-based vaccines, which use harmless fragments of proteins or protein shells that mimic the COVID-19 virus to safely generate an immune response.
  • Viral vector vaccines, which use a safe virus that cannot cause disease but serves as a platform to produce coronavirus proteins to generate an immune response.
  • RNA and DNA vaccines, a cutting-edge approach that uses genetically engineered RNA or DNA to generate a protein that itself safely prompts an immune response.

But does being vaccinated mean you won’t transmit the virus to someone else? The answer to this question is a bit more complex, and one researchers are still trying to figure out.

At this point, studies are still underway to determine if becoming immune to the virus means you can’t spread it. Most viruses tend to remain active both inside and outside a human body, regardless of immunization. But what researchers are currently trying to determine is whether being immunized will limit the virus’ ability to spread from your body to someone else.

What we can tell you about those who have been fully immunized is fairly positive, according to the US Centers for Disease Control and Prevention.

In Canada, new guidelines haven’t been provided for what a person can and can’t do after receiving their shots. However, in the U.S., the CDC says fully vaccinated people can:

  • Visit with other fully vaccinated people indoors without wearing masks or physical distancing
  • Visit with unvaccinated people from a single household who are at low risk for severe COVID-19 disease indoors without wearing masks or physical distancing
  • Refrain from quarantine and testing following a known exposure if asymptomatic

As uncertainty looms, Canadians who are fully or partially vaccinated are asked to continue taking precautions:

  • Wear a well-fitted mask and physical distancing in public
  • Wear masks, practice physical distancing, and adhere to other prevention measures when visiting with unvaccinated people who are at increased risk for severe COVID-19 disease or who have an unvaccinated household member who is at increased risk for severe COVID-19 disease
  • Wear masks, maintain physical distance, and practice other prevention measures when visiting with unvaccinated people from other households
  • Avoid medium- and large-sized in-person gatherings

The transmission of the viruses which cause COVID-19, including the variants, is on going.

However, the good news is that most researchers believe they will be able to figure out more about transmissions among those vaccinated when more shots get into arms.

In B.C., public health orders remain around gatherings. You’re reminded to adhere to these restrictions, such as not taking part in indoor gatherings with people outside your household.

Find a full list of previously answered questions and submit your own on our Gets Answers page.

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RCMP warn about benzodiazepine-laced fentanyl tied to overdose in Alberta – Edmonton Journal

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11 hours ago

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April 19, 2024

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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.”

Photo of benzodiazepine-laced fentanyl seized earlier this year by Grande Prairie RCMP after a fatal overdose. edm

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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  2. Edmonton city police helped RCMP obtain search warrants at two rural properties west of the city before the seizure of roughly $440,000 in stolen property, including vehicles, snowmobiles, tools, trailers and firearms.

    RCMP net $440K in stolen property after searches in Breton and Parkland County

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CFIA continues surveillance for HPAI in cattle, while sticking with original name for disease – RealAgriculture

Published

16 hours ago

 on

April 19, 2024

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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.

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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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Toronto reports 2 more measles cases. Use our tool to check the spread in Canada – Toronto Star

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1 day ago

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April 19, 2024

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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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