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What else can I help you with?
Allergic reactions are most closely associated with?
immune responses to usually harmless substances
Does an antigen cause an allergic reaction?
Only if the person is already allergic to that antigen. Not if they are immune to the antigen. The word antigen refers to the protein that joins with the antibody. If the antibody is of the allergic type (IgE) then an allergic reaction will happen and if the antibody is of the immune type (IgG, IgM or IgA) then there won't be an allergic reaction.
Why does pollen trigger an allergic reaction in some people?
An allergy is when a person's immune system perceives something that is usually harmless as a threat to the body and launches an attack called an immune response.
What is the same as hypersensitivity?
Hypersensitivity is also known as allergic reaction, exaggerated immune response, or allergic sensitivity.
What Kinds of Chemicals can Cause an Allergic Reaction?
Allergic reactions depend on a person's immune response and biological reactions. This means that all chemicals has the potential to trigger at least one person's allergic reaction.
What occurs when the immune system mounts an exaggerated response to a harmless antigen?
hypersensitivity
Could fever blisters be the cause of a allergic reaction to Lactaid milk?
No they are usually a reaction to a stressed out or lowered immune system. They can also occur after being out in the sun or very cold weather for long periods of time.
A misdirected immune system responds against a harmless antigen is called?
An allergic reaction i believe.
What describes the body's recognition of a relatively harmless substance as a dangerous antigen and subsequent mounting of an immune response?
an allergic reaction
I have an allergic reaction to sulfur why?
An allergic reaction is an abnormal immune system response to things that are normally harmless to most people. When one is allergic to something, the immune system incorrectly identifies this substance as harmful to one's body. (Substances which cause allergic reactions, such as certain foods, medicines, plant pollen, or dust, are called allergens.)In an attempt to protect the body, the immune system produces immunoglobulin E antibodies. When the IgE antibodies make contact with the allergens, they attach onto it and release chemicals such as histamine into the bloodstream. The histamine causes such allergic reactions as a runny nose, tearing eyes, sore throat, diarrhea, skin rashes, or difficulty breathing and swelling.
What is an overreaction of the immune system to an invading particle or substance that is not normally harmful?
An overreaction of the immune system to an otherwise harmless substance is called an allergic reaction. In allergies, the immune system mistakenly identifies the harmless substance as a threat and produces an exaggerated response, leading to symptoms such as sneezing, itching, or hives.
What is the hypersensitive reaction to a substance?
Hypersensitivity reaction is an exaggerated immune response to a substance that is usually harmless to most people, such as pollen, certain foods, or medications. This response can lead to symptoms ranging from mild irritation to severe allergic reactions.
