HHS Secretary Robert F. Kennedy Jr. renewed his claims about vaccine ingredients, focusing on aluminum.
He said aluminum in vaccines causes health effects, including allergies and autism. Scientific organizations dispute his statements.
Aluminum salts have been used in vaccines for decades as adjuvants that strengthen immune response. Health officials state that available research supports their use and that current evidence shows vaccines remain safe for public use.
Kennedy’s remarks triggered debate in scientific and public circles. Critics say his claims misrepresent vaccine safety and lack scientific support. Health agencies continue to promote vaccination as a key tool for preventing disease.
The CDC reports that vaccines undergo safety reviews before approval and that monitoring continues after distribution. Medical professionals maintain that vaccines help control infectious disease and reduce health risks.