It's been like dominos: One European nation after the other has put a pause on AstraZeneca shots due to unproven concerns that the coronavirus vaccine may cause blood clots. POLITICO Europe's Sarah Wheaton breaks down how and why countries panicked despite a lack of evidence.

Sarah Wheaton is POLITICO Europe's chief policy correspondent.
Jeremy Siegel  is a host for POLITICO Dispatch and produces Pulse Check.
Jenny Ament is the senior producer of POLITICO Audio.
Irene Noguchi is the executive producer of POLITICO Audio.

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