An anti-vaccine lawyer who has regularly sued federal and state health agencies spoke Friday at a meeting of the Centers for Disease Control and Prevention’s vaccine advisory panel — an unheard-of departure for the committee, which for decades was a trusted source for vaccine recommendations.

The lawyer, Aaron Siri, has also served as the personal attorney for Health Secretary Robert F. Kennedy Jr., a longtime anti-vaccine activist.

Siri delivered a lengthy presentation about the childhood immunization schedule, chronicling what he said were concerning adverse events from routine vaccines and calling particular attention to vaccines for hepatitis B, pneumococcal disease and a combination shot for diphtheria, tetanus and pertussis (whooping cough). Previously, Siri has advocated for the F

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