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Explanatory. Why do countries stop shooting AstraZeneca?

LONDON (AP) – Countries including Denmark, Ireland and Thailand have temporarily stopped using the AstraZeneca coronavirus vaccine in recent days after some people who received the dose caused blood clots, although there is no evidence that the shot was fired. is responsible. The European Medicines Agency համաշխարհային The World Health Organization states that the available data do not suggest that the vaccine caused a blood clot, that people should continue to be immunized. Here’s a look we know և what’s not.

WHAT HAPPENED?

Last week, Denmark was the first country to discontinue the AstraZeneca COVID-19 vaccine following reports of blood clots in some people, including one person who developed multiple thrombosis and died at least 10 days after receiving a single dose. Danish health officials said the suspension would take at least two weeks before cases could be investigated, although they said it was “not possible to determine at this time whether there was a link between the vaccine and blood clots”.

Norway, Iceland, Bulgaria, Thailand and Congo soon followed suit. Norwegian authorities said on Saturday that four people under the age of 50 who received the AstraZeneca vaccine had abnormally low blood platelets. This can lead to heavy bleeding. Ireland և The Netherlands announced on Sunday that it was also temporarily discontinuing the AstraZeneca vaccine.

The Dutch authorities, as elsewhere, say that the suspension of the AstraZeneca vaccine is strictly preventive.

“We always have to be careful to be careful, so it is wise now to press the pause button as a precaution,” said Dutch Health Minister Hugo de Jongen.

Several countries are still left with the vaccine.

In response to the vaccine suspension, AstraZeneca said it had carefully studied data from 17 million people who received doses across Europe. It says there is no evidence that the country is “at risk for an increase in blood clots by age or sex”.

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Is there any evidence that the vaccine is responsible?

No. The European Medicines Agency says “there is no indication that the vaccine caused these conditions.” The EU regulator has announced that the number of reports of blood tissue in people who received the AstraZeneca vaccine is not higher than in those who did not receive the shot.

In the UK, where the 11 million doses of the AstraZeneca vaccine were administered, more than in any other country, there were reports of about 11 people receiving a blood transfusion after being shot. None of the vaccines have been shown to be effective.

Some doctors have noted that since vaccination campaigns began with doses for the most vulnerable, vaccinated people are now more likely to have health problems. Experts say it could make it harder to determine if a vaccine shot was responsible.

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WHY THE VACCINATIONS STOPPED?

At a time when vaccines are so widespread, scientists expect serious health problems և deaths simply because millions of people are being recruited խնդիրները problems are expected to occur by chance in such a large group. The vast majority of them are ultimately not vaccine-related, but since COVID-19 vaccines are still experimental, scientists need to look into every possibility that the shot could have some unpredictable side effects. The shots are considered experimental because the vaccines have only been developed in the last year, so there is no long-term data for any of them.

“People are dying every day. We have more than 300 million immunized people in the world who will die from other causes,” said Dr. Mariangela Simao, WHO Assistant Director-General.

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THIS CONCERN WITH OTHER KOVID-19 VACCINES

The EMA is currently investigating whether COVID-19 shots taken by Pfizer-BioNTech, Moderna Inc. և AstraZeneca may cause low platelet counts in some patients, a condition that can lead to bruising and bleeding. :

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Did ASTRAZENECA run another problem?

The vaccine has been approved for use by adults in more than 50 countries and has been shown to be safe, effective in studies in the United Kingdom, Brazil and South Africa. But concerns have been raised about the release of vaccine data, with some European leaders, including French President Emanuel Macron, questioning the vaccine’s effectiveness.

Britain first vaccinated the vaccine based on partial results, which suggested that the shots were about 70% effective. But those results were clouded by a production error that pushed some participants to get only half a dose on their first stroke. A mistake that the researchers did not immediately acknowledge. When it was offered a patent for the vaccine, the EMA estimated the vaccine to be about 60% effective.

Evidence that the vaccine protects older adults was also lacking, prompting some European countries to initially refrain from firing on older people.

The U.S. Food and Drug Administration has suspended the study of 30,000 Americans for an unusual six weeks as frustrated regulators sought information on some of the possible side effects reported in the UK.

“All the data we have seen about the AstraZeneca vaccine suggest that it is very safe, it saves people from dying from COVID,” said Dr. Paul Hunter, Professor of Medicine at the University of England. “But this can be more of a perception issue, because every time we have a vaccine problem, we immediately hear the name ‘AstraZeneca’.”

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SO WHAT WILL THE EXPERTS DO?

The WHO, the EMA, as well as regulators in a number of countries, say that people should continue to be vaccinated, that the risk of being vaccinated far outweighs the potential harm.

“Public safety will always come first,” said the British Drug Enforcement Administration. “People still have to go and get their COVID-19 vaccine when they ask for it.”

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