++ Vaccines: expert teams, found to cause clots with AstraZeneca ++

(ANSA) - ROME, 02 DEC - A team of scientists in Wales and Usar believe they have found the "trigger" of extremely rare blood clots after the administration of the AstraZeneca vaccine.

The team, reports the BBC, showed in detail how a protein in the blood is attracted to a key component of the vaccine devised in Oxford, triggering a chain reaction that involves the immune system and that can culminate in dangerous clots.

Alan Parker, one of Cardiff University researchers, told the BBC: "What we have is the trigger, but there are a lot of steps that have to happen next."

(HANDLE).