mRNA vaccines are not new, just newer than existing platforms. mRNA vaccine clinical trials which usually last years (or a decade), were completed in 2017, as per the nature article summary. The technology and its effects are well known in both in mice and human models.
Is there residual risk that there were will be some unintended side-effect when billions of doses are administered? Yes, of course. There is no way to prove a vaccine is safe for everyone in all conditions, (see: Popper's falsification and the demarcation problem). Same goes for any other pharma formulation, food stuff or procedure. However, we have to weigh the residual risks against the risk of death from Covid and its variants and risk of long term damage to me or those around me who might be unwittingly in a higher risk category.
Vaccination is a moral obligation and even if I would rather not, decency and civic duty to our fellow humans dictates that I must. And so should you.
Is there residual risk that there were will be some unintended side-effect when billions of doses are administered? Yes, of course. There is no way to prove a vaccine is safe for everyone in all conditions, (see: Popper's falsification and the demarcation problem). Same goes for any other pharma formulation, food stuff or procedure. However, we have to weigh the residual risks against the risk of death from Covid and its variants and risk of long term damage to me or those around me who might be unwittingly in a higher risk category.
Vaccination is a moral obligation and even if I would rather not, decency and civic duty to our fellow humans dictates that I must. And so should you.