The corona vaccine Vaxzevria, also known as the AstraZeneca vaccine, is associated with an increased incidence of low platelets and venous thrombosis in the brain.
At the same time, no similar correlation has been found for the two mRNA vaccines Comirnaty and Spikevax. It shows new results from the public health institutes in Norway, Denmark and Finland, writes FHI on their website on Wednesday.
The Nordic study was conducted by researchers from the National Institute of Public Health, the Danish Statens Serum Institut and the Finnish National Institute of Public Health THL, who have used health register data from the three countries
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Confirms previous studies
The data are used to examine the risk of blood clots and low platelets after different types of coronary vaccination.
The researchers found a 12-fold increase in the incidence of sinus vein thrombosis (venous thrombosis in the brain) and a 4-fold increase in the incidence of low platelets in the period 28 days after vaccination with Vaxzevria. This corresponds to 1.6 and 4.9 additional cases per 100,000 vaccinated, respectively.
The Nordic co-operation thus confirms a rare but serious side effect after coronary vaccination with the coronary vaccine Vaxzevria from AstraZeneca.
– This study confirms what we have seen in a number of other studies, says assistant director Geir Bukholm at the National Institute of Public Health.
Sinus vein thrombosis and low platelets are part of the serious but very rare disease picture called vaccine-induced immune thrombotic thrombocytopenia.
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AstraZeneca apologizes
On March 11 last year, Norway stopped using the AstraZeneca vaccine after five people died of blood clots, low platelets and bleeding after taking the vaccine.
AstraZeneca has since apologized for the vaccine side effects.
– We regret that innocent, healthy people were affected. At the same time, the vaccine has also played a crucial role in fighting back the pandemic, AstraZeneca’s communications director, Jacob Lund, told VG earlier this year.
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