
For individuals who are allergic to gelatin or egg protein, getting immunized with certain vaccines can carry the risk of anaphylaxis. Anaphylaxis is a severe allergic (or “hypersensitivity”) reaction; and, while it is rare overall, it presents a significant concern for individuals who have these allergies. As a result, prior to getting vaccinated, individuals who have gelatin or egg protein allergies should consult with their physicians to determine whether it is safe to do so.
Which Vaccines Contain Gelatin?
Gelatin is used as a preservative in various vaccine formulations. For example, gelatin may be present in vaccines including (but not limited to) those used to prevent:
Diphtheria, tetanus and pertussis (DTaP)
Influenza (nasal spray formulations)
Measles, mumps and rubella (MMR) and the separate vaccinations for each of these diseases
Rabies
Singles
Varicella (chickenpox)
Which Vaccines Contain Egg Protein?
Egg protein is used in the production of certain vaccines.
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