As statistically rare as this is, we need to be shouting out about the importance of detecting CVST at an early stage, and what symptoms people need to look out for in the early days after vaccination (eg rapid onset of severe headaches, visual disturbances, vomiting). People can make a full neurological recovery if it’s treated early (one of the men who died in the U.K. was suffering for 10 days before seeking treatment).
We know that Pfizer and Moderna vaccines have rare risks of severe anaphylactic shock, and we have a sense of how to mitigate against that. The same needs to be done here in order to reassure people.