All 17 experts recently dismissed from a government vaccine advisory panel published an essay Monday decrying “destabilizing decisions" made by U.S. Health Secretary Robert F. Kennedy Jr. that could lead to more preventable disease spread.

Kennedy Jr. on Wednesday named eight new vaccine policy advisers to replace the panel that he abruptly dismissed earlier this week. They include a scientist who researched mRNA vaccine technology and became a conservative darling for his criticisms of COVID-19 vaccines,

Just two days after retiring the entirety of the US Centers for Disease Control and Prevention’s vaccine advisory panel, US Health and Human Services Secretary Robert F. Kennedy Jr. has appointed several prominent critics of the government’s Covid-19 response to that committee.