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Table 4 Examples of testing used to assess specific vaccines suspected of causing allergic reactions

From: International Consensus (ICON): allergic reactions to vaccines

Vaccine Skin testing In vitro IgE testing
DTaP, Td, Tdap DTaP, Td, Tdap,Tetanus toxoid, Gelatin, Milk Gelatin, Milk
Hepatitis B Hepatitis B, Yeast Yeast
Influenza Influenza, Egg, Gelatin Egg, Gelatin
MMR MMR, Measles, Mumps, Rubella, Gelatin Gelatin
Varicella or Zoster Varicella or Zoster, Gelatin Gelatin
Yellow fever Yellow fever, Egg, Gelatin Egg, Gelatin
• Whenever possible, the same vaccine from the same manufacturer that was given at the time of the reaction should be used for testing