Fiona Havers, who oversaw CDC respiratory virus data, told colleagues she no longer had confidence the data would be used objectively to set vaccine policy.

Robert F. Kennedy Jr., US secretary of health and human services, dismissed all 17 members that make up a key committee advising the US government on vaccine safety and policy, saying that removing the entire panel was the only way to restore public confidence in vaccine science.

Recently fired members of a committee that advises the federal government on immunization safety lashed out at Health and Human Services Secretary Robert F. Kennedy Jr., saying that their terminations will limit access to vaccines and put American lives at risk.