Allergies; Allergy/Allergies; Anaphylaxis 


An allergy is a immune malfunction whereby a person's body is hypersensitised to react immunologically to typically nonimmunogenic substances. When a person is hypersensitised these substances are known as allergens. The word allergy derives from the Greek words allos meaning "other" and ergon meaning "reaction" or "reactivity". Reactions can vary from the benign runny nose, to life-threatening anaphylactic shock and death.

Allergy as related to Allergic Reaction, Anaphylaxis

  • anaphylaxis - WebMD
    Anaphylaxis is a severe allergic reaction that needs to be treated right away. If you have an anaphylactic reaction, you need an epinephrine (adrenaline) shot as soon ...

  • Allergic reactions: MedlinePlus Medical Encyclopedia
    Allergic reactions are common. The immune response that causes an allergic reaction is similar to the response that causes hay fever. Most reactions happen …

  • Anaphylaxis - Wikipedia
    Anaphylaxis is a severe, whole-body allergic reaction to a chemical that has become an allergen. An allergen is a substance that can cause an allergic reaction.

  • Anaphylaxis (Severe Allergic Reaction) - MedicineNet
    Read about anaphylaxis and how it differs from an allergic reaction. Learn about shock, symptoms, treatment, diagnosis, causes (insect stings, latex allergy, food ...

  • Allergy - Wikipedia
    Pet allergies can contribute to constant allergy symptoms, ... exposure to an allergen can cause a life-threatening allergic reaction known as anaphylaxis.

  • Severe Allergic Reactions: Symptoms and Signs of Anaphylaxis
    WebMD explains the symptoms of severe allergic reactions and stay ... a mild allergy, ... known as anaphylaxis, a severe allergic reaction that needs ...

  • Severe Allergic Reaction: Anaphylaxis |
    Anaphylaxis is a sudden, severe allergic reaction. It can be life-threatening and must be treated right away.

  • Anaphylaxis - Mayo Clinic
    Anaphylaxis — Comprehensive overview covers symptoms, risk factors and treatment of this dangerous allergic reaction.