What is immunological memory?
Immunological memory is the adaptive ability of the body's immune system to remember an antigen during the first invasion and to have an appropriate, effective response in the event of repeated contact.
When a pathogen or its related antigen enters the body for the first time, the immune system begins to deal with it. During this connection, some immune cells form a kind of "memory" and store information about the foreign body. That is why, in the event of a re-invasion of the same pathogen, the body easily manages to eliminate the problem, therefore, the risk of developing an acute disease is minimized.
White blood cells play a major role in the creation of immunological memory. Vaccines also help the immune system in the formation of immunological memory.
As you know, every day we have to come into contact with many bacteria, viruses, and microbes - that is why we should take care of personal hygiene and wash our hands frequently.
Source:
https://asm.org/articles/2023/may/understanding-immunological-memory
