U.S. Health Secretary Robert F. 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, a leading critic of pandemic-era lockdowns, and a professor of operations management.

The new appointees include Vicky Pebsworth, a regional director for the National Association of Catholic Nurses. She has been listed as a board member and volunteer director for the National Vaccine Information Center, a group that is widely considered to be a leading source of vaccine misinformation.