They’re not supposed to be there, but they are: In an examination of Pfizer and Moderna COVID-19 shots, every single vial of both the monovalent and bivalent jabs was contaminated with DNA fragments.

Granted, the manufacturing process relies on an “RNA polymerase transcribing from a DNA template,” but the DNA fragments are not supposed to be there beyond certain levels when the process is complete. Not only that, when researchers looked at the frequency of reports of serious adverse events (SAEs), researchers “found preliminary evidence of a dose response relationship of the amount of DNA per dose” and the SAEs.

In a preprint post of the study, researchers concluded, “These data demonstrate the presence of billions to hundreds of billions of DNA molecules per dose in these vaccines … Our findings extend existing concerns about vaccine safety and call into question the relevance of guidelines conceived before the introduction of efficient transfection using LNPs.”