Moderna Scientists Warn mRNA Vaccines Carry Toxicity Risks

Certain techniques should be used to reduce the risks, scientists say.

The Moderna campus in Norwood, Mass., on Dec. 2, 2020. Joseph Prezioso/AFP via Getty Images

The technology used in Moderna’s COVID-19 vaccine carries toxicity risks, scientists with the company said in a new paper.

“A major challenge now is how to efficiently de-risk potential toxicities associated with mRNA technology,” the scientists wrote in the paper, which was published by Nature Reviews Drug Discovery on Jan. 23.