➤The immune system keeps a record of every germ (microbe) it has ever defeated so it can recognise and destroy the microbe quickly if it enters the body again.
➤The immune system is a host defense system comprising many biological structures and processes within an organism that protects against disease.
➤Your immune system is your body’s version of the military: sworn to defend against all who threaten it, both foreign and domestic.
➤Your immune system is a complex network of cells, tissues, and organs that work together to defend against germs.
➤The immune system is spread throughout the body and involves many types of cells, organs, proteins, and tissues.
➤The immune system is a complex network of cells and proteins that defends the body against infection.
➤Your immune system works to root out germs and other invaders that have no business in your body.
➤The immune system is composed of a variety of different cell types and proteins.
➤The immune system is composed of a variety of different cell types and proteins
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