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Note: The risk is still very small for most people with this vaccine, especially given that millions have received the vaccine, especially in the UK, without incident. Additionally, other COVID-19 vaccines have also been found to be associated with similar clots in rare cases (e.g., the Johnson and Johnson vaccine, and possibly Pfizer but that’s uncertain at this time) but so far this study which only looked at the AstraZeneca version, is the first to find a causal link.
It should also be noted that many other medical factors have been associated with a small risk for similar clots, including women on birth control pills or other hormone treatments, individuals with vascular disease, diabetics, and other medical conditions, not to mention smoking. People who are already carrying a risk for clots should probably advise medical personnel of this and request a different vaccine until the risks are further clarified. ~ admin
AstraZeneca COVID Vaccine: Causal Link to Severe Thrombosis Established
Greinacher said they have now analyzed 40-50 cases, all of which show the presence of the PF4 antibodies. “All the cases show the same picture,” he said. “Thrombotic complications develop within a couple of weeks of having the AstraZeneca vaccine and the link between the vaccine and the occurrence of this pathogenic antibody is very strong.”
In the Norwegian study, a group led by Nina Schultz, MD, Oslo University Hospital, note that older people in Norway have been given the Pfizer vaccine, with the AstraZeneca vaccine generally being used for healthcare workers under age 65 years. As of March 20, when administration of the AstraZeneca vaccine was paused, 132,686 people in Norway had received one dose of the vaccine and none had received the second dose.