factually
Index/Topics/SV40 DNA and cancer risk

SV40 DNA and cancer risk

Fragments of SV40 DNA or residual plasmid DNA in mRNA vaccine preparations could be oncogenic, but independent reporting explains that fragments are not the intact, infectious virus.

Fact-Checks

1 result
Jan 31, 2026
Most Viewed

Do covid vaccines cause turbo cancers

The claim that COVID-19 vaccines cause a new entity called “turbo cancer” is not supported by the bulk of scientific and public‑health reporting: major cancer organizations and multiple fact‑checks sa...