Intracellular Reverse Transcription of mRNA Vaccine in Human Liver Cell Line

> Conclusions

> Our study is the first in vitro study on the effect of COVID-19 mRNA vaccine BNT162b2 on human liver cell line. We present evidence on fast entry of BNT162b2 into the cells and subsequent intracellular reverse transcription of BNT162b2 mRNA into DNA.