Vågar ni vaccinera er mot covid?
Tydligen har de hittat några faktorer som påverkar vilka som har större risk för dessa sällsynta biverkningar, förutom att yngre kvinnor drabbas oftare.
www.bbc.com/news/health-56674796
In the CVST clot cases under investigation, the patients were all found to have low numbers of platelets -these are blood cells that normally help repair bleeding in the body.
Patients were also found to have a particular antibody (an immune protein that often helps fight against infection) in their blood that activates platelets.
The antibody appears to cause the platelets to mistakenly clump together and form clots, and in turn activate other parts of the body's clotting system.
This unusual combination of clots and low platelets is one of the features doctors are now looking out for.