AstraZeneca was not immediately available for comment. It has said previously its studies had found no higher risk of clots because of the vaccine.The regulator has consistently said the benefits outweighed the risks as it investigates 44 reports of an extremely rare brain clotting ailment known as cerebral venous sinus thrombosis out of 9.2 million people in the European Economic Area who have received the AstraZeneca vaccine.
European investigators have put forward one theory that the vaccine triggers an unusual antibody in some rare cases; others are trying to understand whether the cases are linked with birth control pills.
Source: Healthcare Press (healthcarepress.net)
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