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Are Fetal Cells Used to Make Vaccines?

Paul A. Offit, MD, discusses the use of fetal cells to make vaccines and the Catholic Church’s interpretation of the use of vaccines made in this manner.

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Is There Mercury in Vaccines?

Paul A. Offit, MD, explains the different types of mercury and how they are processed in the human body. He also discusses which commonly recommended infant vaccines still contain mercury-associated preservatives.

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Do Vaccines Cause Allergies?

Paul A. Offit, MD, discusses the hygiene hypothesis as it relates to vaccines and allergies in children.

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Are Vaccines Safe?

Paul A. Offit, MD, discusses the definition of “safe” in the context of vaccination, and explains the benefits versus risks of vaccines and vaccine-preventable diseases.

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Do Vaccines Cause Autoimmune or Chronic Disorders?

Paul A. Offit, MD, addresses concerns about vaccines and autoimmune diseases, such as arthritis, rheumatic fever and multiple sclerosis, and explains how we know vaccines are not the cause.

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Do Vaccines Cause Autism?

Paul A. Offit, MD, addresses concerns about vaccines and autism, describing the origin and nature of the concerns and the numerous scientific studies that have addressed them.

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