A new laboratory analysis found residual DNA fragments in Pfizer and Moderna mRNA COVID-19 vaccines that standard regulatory tests fail to detect. Researchers warn current testing methods may underestimate DNA contamination by more than 100-fold.
January 18, 2026
A new laboratory analysis found residual DNA fragments in Pfizer and Moderna mRNA COVID-19 vaccines that standard regulatory tests fail to detect. Researchers warn current testing methods may underestimate DNA contamination by more than 100-fold.