After the launch of coronavirus vaccination campaigns from 2021, he was immediately suspected of a link between vector vaccines in vials – AstraZeneca and Johnson & Johnson – and the appearance of these blood diseases.
The study, conducted using the health data of millions of patients in various countries of the Europe y United States of Americaconfirms that these thromboses are more frequent after the AstraZeneca vaccinealthough they are very rare: 862 cases for more than one million vaccinated.
The risk appears to increase after the first dose. After the second, There is no difference between AstraZeneca and Pfizer / BioNTech vaccines, AFP added.
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As for the vaccine Johnson & JohnsonThe data indicate an increased risk, but not clearly enough for researchers to draw a conclusion, according to the study.
The study comes above all to confirm “that all vaccines (anticovid) are safe and effective”the microbiologist told AFP Sara Pitthighlighting the frequency “extremely rare” of cases of thrombocytopenia.
