Pfizer mRNA Vaccine Makes ‘Aberrant Proteins,’ Experts Concerned About Autoimmunity Events

A study shows that Pfizer vaccines were significantly more likely to produce proteins that some experts believe may increase cancer and autoimmune risk.

Pfizer-BioNTech COVID-19 vaccine vials are seen in a file photo. cortex-film/Shutterstock

There may be around a 1 in 10 chance that Pfizer mRNA COVID-19 vaccines will not generate spike proteins but something else, a new Cambridge study finds, raising concerns about autoimmune response among experts.

The study authors found that 8 percent of the time, Pfizer mRNA COVID-19 vaccines are mistranslated, leading to the formation of unintended proteins.