Medically reviewed by Jurairat J. Molina, MD Allergies are an immune system reaction to substances called allergens. The cause a range of symptoms from a stuffy nose to itchy eyes to difficulty ...

Thimerosal-allergic patients were challenged with three intramuscular injections of thimerosal solution (100 µg/mL) into the arm; if no reaction was observed, the dosage was increased (to 0.1 mL ...

There are four main types of hypersensitivity reactions: Type I, which involves immediate allergic reactions; Type II, which includes cytotoxic reactions; Type III, characterized by immune complex ...

However, other metal ions as well as bone cement components can cause such hypersensitivity reactions. To complicate things, patients may also develop delayed-type hypersensitivity reactions to ...