Might be dumb questions, but what's the background rate of these rashes in the general population? What fraction of that population received a first dose of the

Might be dumb questions, but what's the background rate of these rashes in the general population? What fraction of that population received a first dose of the Pfizer-BioNTech vaccine? These two cases occurred 7 days and 8 days after the affected individual's first vaccine dose. How many other people experienced the same type of rash due to some unknown trigger without recent vaccination? How were these two rash cases actually linked to the vaccine? Is the 1+ week delay implicitly deemed close enough to assume a causal link?