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Reactions to thimerosal in hepatitis B vaccines
1Department of Dermatology, Ochsner Clinic, New Orleans, Louisiana.
Dermatologic Clinics
|January 1, 1990
Summary
Hypersensitivity to thimerosal in vaccines can cause long-lasting local and generalized skin reactions. Even without antibody formation to vaccine antigens, severe adverse events are possible, indicating a potential risk.
Area of Science:
- Immunology
- Vaccinology
- Dermatology
Background:
- Thimerosal, a vaccine preservative, has been associated with hypersensitivity reactions.
- Reported reactions include local, urticarial, and generalized eruptions.
- The hepatitis B vaccine has been linked to urticaria with asthma in sensitive individuals.
Observation:
- Two cases of extensive hypersensitivity reactions to thimerosal-containing vaccines are presented.
- One patient experienced severe reactions despite not forming antibodies to the primary vaccine antigen.
- These cases highlight the potential for significant and persistent adverse events.
Findings:
- Hypersensitivity to thimerosal can manifest as severe and prolonged local and systemic reactions.
- Adverse reactions are possible even in individuals who do not produce antibodies to vaccine antigens.
- The risk of severe reactions exists, though not all thimerosal-sensitive individuals experience them.
Implications:
- Clinicians should be aware of the potential for severe, long-lasting reactions to thimerosal in vaccines.
- Further investigation into the mechanisms of thimerosal hypersensitivity is warranted.
- Patient history of sensitivity should be considered in vaccine risk-benefit assessments.