Autoimmunity or hypersensitivity.
Usually itching is caused by the release of histamine as part of an immune response, either an inappropriate response to proteins in the environment (i.e. allergies) or to a parasitic infection.
They're abnormal immune responses - by definition, an allergy is an inappropriate response to a foreign substance. After all, it's not known as an 'allergy' when people's immune systems attack harmful pathogens, despite the body mounting somewhat similar immune responses.
Allergic responses refer to immune responses that adversely affect the host, by mistakenly targeting harmless substances and triggering an inappropriate reaction. This leads to symptoms such as inflammation, itching, and swelling.
Looking for antigens is part of a specific immune response.
Secondary Immune Response is more rapid.
When mixed with an immunogen, it enhances the immune response against the immunogen
Antibodies are proteins produced by the immune system in response to antigens, which are foreign substances that trigger an immune response. Antibodies bind to antigens to help neutralize or eliminate them from the body, playing a crucial role in the immune response.
Specific response
when it an infection or something gets past the first immune response then your body uses a different response or after immunisation
Primary Immune response: 1) Smaller Peak Response 2) Usually IgM>IgG 3) Lowere average Antibody Affinity Secondary Immune Response 1) Larger Peak Response 2) Relative increase in IgG and under certain situations in IgA or IgE ( Heavy Isotype switching) 3) Higher Average Antibody Affinity ( Affinity Maturation)
in order for antigens to incite the immune response the y must be ?
lymphokines