Those taking an MRNA "vaccine" are potentially permanently altering their body's immune system in ways which are not fully tested, researched or understood.

For those with serious co morbidity issues this may be deemed a risk worth taking - for the 99.75+% of others aged 75 and under who could expect to survive covid 19 (the majority of whom will be largely if not wholly asymptomatic) it might reasonably be asked if the risk / reward ratio of participating in the MRNA trial is a reasonable one.