"75% of [Pfizer/BioNTech] vaccine trial volunteers had experienced side-effects."

Rating

It's unclear where Ms Robinson gets the 75% figure from, but it may have selectively been chosen from the rate of mild side-effects reported in one age group in an earlier phase of the trial. Full data about side-effects has not yet been published for the most recent phase of the trial, but Pfizer has confirmed they observed no serious side-effects.

Reviewed by BBC Reality Check ↗ · November 15, 2020