COVID vaccine trials may have missed rare side effects, study warns

A new analysis reveals that the randomized clinical trials used to approve COVID-19 vaccines were not designed to detect uncommon deaths or serious health outcomes that occur in small populations. The finding raises questions about post-approval safety monitoring and has implications for how regulators evaluate vaccines and other medical treatments going forward.

Originaltitel: Randomised clinical trials of COVID-19 vaccines are not designed to study non-specific effects on rare mortality