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Questions Answered

Is it safe to get multiple vaccines at the same time?

Recommended article: Do Combination Vaccines or Simultaneous Vaccination Increase the Risk of Adverse Events?

Certain combination vaccines or simultaneous administration of vaccines that are known to cause fever can rarely cause febrile seizures in infants and young children beyond the risk presented by individually administered vaccines.

Do Combination Vaccines or Simultaneous Vaccination Increase the Risk of Adverse Events?

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Do vaccines cause autism?

Recommended article: Do Vaccines Cause Autism?

Childhood vaccines do not cause autism. Maternal vaccines have not been shown to cause autism.

Do Vaccines Cause Autism?

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Are the ingredients in vaccines safe?

Recommended article: DO VACCINE INGREDIENTS CAUSE ADVERSE EVENTS?

Certain ingredients that are present in some vaccines (other than disease-specific antigens), such as gelatin or neomycin, can very rarely cause severe hypersensitivity reactions (e.g. anaphylaxis) in vaccines with those specific allergies.

DO VACCINE INGREDIENTS CAUSE ADVERSE EVENTS?

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Do Vaccines Cause Asthma?

Recommended article: DO VACCINES CAUSE ASTHMA?

Natural infection with influenza can contribute to asthma exacerbation. Thus, influenza vaccine prevents asthma exacerbation by protecting against natural infection.

DO VACCINES CAUSE ASTHMA?

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ABOUT IVS

The Institute for Vaccine Safety was established in 1997 in the Department of International Health at the Johns Hopkins University School of Public Health – now the Johns Hopkins Bloomberg School of Public Health.

Our mission is to provide an independent assessment of vaccines and vaccine safety to help guide decision makers and educate physicians, the public and the media about key issues surrounding the safety of vaccines. The institute’s goal is to work toward preventing disease using the safest vaccines possible.