Pfizer’s COVID-19 Vaccine Goes Into Liver Cells and Is Converted to DNA: Study

Pfizer’s COVID-19 Vaccine Goes Into Liver Cells and Is Converted to DNA: Study
A nurse prepares the Pfizer COVID-19 vaccine in a file image. Jeff Kowalsky/AFP via Getty Images
Meiling Lee
Updated:
0:00

The messenger RNA (mRNA) from Pfizer’s COVID-19 vaccine is able to enter human liver cells in a lab and is converted into DNA, according to Swedish researchers at Lund University.

The study used liver cancer cells grown in a laboratory setting, so the findings may not directly reflect how the process would occur in healthy human cells.