Immune system.

Immune system

The immune system protects the body from its flight from foreign invaders such as bacteria. viruses, fungi, and toxins (chemicals produced by microbes). It is made up of different organs, cells and proteins that work together.

The immune system consists of two main parts:

The innate immune system

The acquired immune system

It is your child's rapid response system, which patrols his body and produces the first response when it encounters an invader. The innate immune system is inherited and is active from the moment your child is born. When this system recognizes an invader, it goes into action immediately. The cells of this immune system surround and enclose the invader. The invader is then eliminated within the cells of the immune system. These cells are called phagocytes.

With the help of the innate immune system, it produces cells (antibodies) to protect your body from specific invaders. These antibodies are developed by cells called B lymphocytes after the body has been exposed to the invader. These antibodies stay in your child's body. It may take several days for these antibodies to develop, but after the first exposure, the immune system will recognize the invader and defend it against it. The acquired immune system changes throughout your child's life. Vaccines train your child's immune system to make antibodies that protect him from harmful diseases.