The mRNA vaccines have been out for about a year or so. What evidence is there to indicate that it is safe even in the medium term (>2yrs) let alone long term?
In 2009, researchers conducted the first-ever trial on cancer immunotherapy using mRNA-based vaccines in human subjects with metastatic melanoma. The results of the trial showed an increase in the number of vaccine-directed T cells against melanoma (Weide et al., 2009).
Because autoimmune reactions to antigens either show up in 3 months or they don't.
Vaccines are tiny and you don't take them chronicially. They aren't like medicine.
The bad side effects are entirely your body attacking itself.
And there's a well-studied branch of medicine dealing with that. There's no autoimmune disease which emerges only >2 years after exposure to an antigen. In all of medicine that phenominon doesn't exist in order for to happen after an mRNA vaccine.
