What is a crossed reactivity?

Cross-reactivity is the ability of an immune cell to attack a foreign cell that differs from the one that has created it. Immune cells are produced by the body to destroy the substances causing diseases. Each immune cell attacks a certain type of invasive agent. If a different type of substance causing a disease similar to chemical properties to a previously bustled invasive agent, cross reactivity may occur, allowing the immune cell to attack a new attacker. This process is also known as immunity between immunity and inter space immunity. When the pathogen enters the body, its presence triggers an innate immune system. The reaction of the congenital immune system is general, but often sufficient to fight most pathogens. If the reaction of the congenital immune system is not enough to bounce the attackers of the body, the adaptive immune system starts and mounts the specified attack.

All jaws, including humans, have an adaptive immune system. Differs from a simpler congenital immune system in that itsThe response to pathogen is very specific. The adaptive immune system is able to recognize proteins or antigens on the surface of pathogenic cells and create an immune cell or antibody, specially designed to destroy it.

Sometimes it will have a different pathogen of proteins that are the same or similar to those on the pathogen that the body has already encountered. The adaptive immune system recognizes antigen and uses already created antibodies to attack, destroying a new pathogen. This process is called cross reactivity.

The term cross reactivity also applies to allergy. The immune system passes through the same process, but an antigen that causes not pathogenic, but the body is perceived as potentially dangerous or illness-Cocuzpit threat. In this scenario, antigen is called allergen.

Any substance that causes an allergic reaction is an allergen. Allergic reactions vary in severity and presentation.Allergies that are allergic to the same substance can cause different reactions to it. For example, one person who is allergic to grass will suffer from nasal overload, while the other gets a skin rash. Allergic reactions are side effects of the immune system attacking allergen.

crossed by allergen reactivity may occur when the body is exposed to similar or closely related allergens. For example, people who are allergic to birch pollen should avoid eating raw apples because they have similar chemical compounds. Immune cells recognize the similarity in the chemical composition of the non -allergenic substance and attack it, causing crossed allergy.