PROF: It wasn’t a problem
A new study conducted at the University of Oxford shows that the risk of developing a blood clot after Covid-19 is ten times higher than having the same complications after vaccination.
The researchers also saw that the Astra Zeneca vaccine was equivalent to that of Pfizers and Modernas in terms of side effects.
The last few days the debate was over Astra Zenicas Vaccine height. After Denmark’s decision to stop using the drug, many readers were outraged at Aftonbladet’s live reports.
Many criticized the fact that the vaccine was still permitted in Sweden and called for a change of strategy.
But now Oxford researchers could pour oil on the waves, at least in relation to the risk of blood clots
The study, which was conducted on hundreds of thousands of patients, calculated the risk of developing a blood clot after vaccination and after infection with Covid-19 virus, respectively.
Conclusion: The risk of developing a blood clot after illness was about a hundred times higher compared to a healthy person, and ten times higher compared to the person who took the vaccination injection.
But not only that – it turns out that the differences between vaccines are negligible. Approximately 4 in 1 million people experience complications after being injected with Modernas and Pfizer vaccines. The corresponding figure for Astra Zeneca was 5 per million – almost the same.
Ampoules with the Covid-19 vaccine from Pfizer, Moderna and Astra Zeneca.
The combination is the problem
Blood clots are not a problem with any of these vaccines. This was established early on. The problems that Astra Zeneca and Janssen had were side effects in people with a handful of blood clots. And the Low levels of platelets in the same person. This study did not investigate this problem, says Ali Merazimi, a professor at the Karolinska Institute in Solna.
It is a very rare but dangerous side effect if you get it. Therefore, one does not want to underestimate the risks.
Ali Merazemi is a professor at the Karolinska Institute in Solna.
The drugs in this study were shown to protect even younger people from blood clots.
However, the risk of contracting Covid-19 virus has increased dramatically, something some experts hope will lead to a renewed discussion about who should be vaccinated with which drug.
“The infection itself contributes”
It is important to emphasize that those who receive covid-19 have a higher risk of developing blood clots. Ali Merazimi says the infection itself contributes to the formation of blood clots.
Pfizer responded to the study with a statement that the pharmaceutical company data did not show an increased risk of complications, neither in healthy people nor in patients with severely low platelet counts.