Found an interesting article published by Medscape today. It was published on March 31. Quoting a portion of it below. Constructive feedback welcome.
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(Reuters) - Researchers may have found an explanation for the rare but serious blood clots reported among some people who received AstraZeneca's COVID-19 vaccine.
They believe the phenomenon is similar to heparin-induced thrombocytopenia (HIT), in which heparin triggers the immune system to produce antibodies that activate platelets. Drugs other than heparin can cause clotting disorders that strongly resemble HIT, and the researchers suspect that in rare cases, the AstraZeneca vaccine may be another such trigger.
Four previously healthy individuals who got the AstraZeneca shot and developed life-threatening clots had the same kind of antibodies that activate platelets and initiate clotting in HIT, the researchers reported in a paper posted on Research Square ahead of peer review.
Twenty individuals who received the vaccine but did not develop clots did not have these antibodies.
An editorial comment posted with the study noted that drug-induced thrombocytopenia is treatable if identified promptly.
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Source:
The study they are referring to is here:
A Prothrombotic Thrombocytopenic Disorder Resembling Heparin-Induced Thrombocytopenia Following Coronavirus-19 Vaccination Research Square, online March 29, 2021.
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(Reuters) - Researchers may have found an explanation for the rare but serious blood clots reported among some people who received AstraZeneca's COVID-19 vaccine.
They believe the phenomenon is similar to heparin-induced thrombocytopenia (HIT), in which heparin triggers the immune system to produce antibodies that activate platelets. Drugs other than heparin can cause clotting disorders that strongly resemble HIT, and the researchers suspect that in rare cases, the AstraZeneca vaccine may be another such trigger.
Four previously healthy individuals who got the AstraZeneca shot and developed life-threatening clots had the same kind of antibodies that activate platelets and initiate clotting in HIT, the researchers reported in a paper posted on Research Square ahead of peer review.
Twenty individuals who received the vaccine but did not develop clots did not have these antibodies.
An editorial comment posted with the study noted that drug-induced thrombocytopenia is treatable if identified promptly.
**
Source:

Immune Response May Explain Rare Clots After AstraZeneca Vaccine
Researchers may have found an explanation for the rare but serious blood clots reported among some people who received AstraZeneca's COVID-19 vaccine.
www.medscape.com
The study they are referring to is here:
A Prothrombotic Thrombocytopenic Disorder Resembling Heparin-Induced Thrombocytopenia Following Coronavirus-19 Vaccination Research Square, online March 29, 2021.