At the WIRED Health summit on Tuesday, Moderna CEO Stéphane Bancel said the recent changes to Covid-19 vaccine policy made by Health and Human Services secretary Robert F. Kennedy, Jr. are a “step backward.”

Moderna is one of the manufacturers of mRNA-based Covid-19 vaccines, and last month the company received approval from the Food and Drug Administration for an updated version of the shot . But as part of that approval, the FDA imposed new restrictions on who can receive the vaccine. Previously, Covid vaccines were recommended for anyone 6 months or older. Now, the FDA says they should only be given to individuals at high risk of serious disease, either because they are 65 and older or have other health problems.

“I think it complicates things for people,” Bancel said. “You mig

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