Q and A: Vaccine Ingredients: What You Should Know

• 2023

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This fact sheet describes why certain ingredients like aluminum, formaldehyde, gelatin, and mercury are used in vaccines and explains that the amounts are very small and safe. It covers concerns about allergies, religious beliefs, fetal cells in vaccine production, and getting multiple vaccines at once. It reassures parents that these ingredients have been studied for safety and do not harm children’s health or overwhelm their immune systems.

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Tags

Focus Area: Infectious Disease

Audience: Families & Children

Emergency Management Stage: Preparedness (Prevention / Protection)

Keywords: Child; Immune System; Pediatrics; Safety; Vaccines

Institutions: Children's Hospital of Philadelphia

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The information provided on this website is for educational purposes only. It does not substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

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