What’s the Immune System?

When an infection enters the body (viruses, microbes), for some time it is multiplied without obstacles. The condition of a person gets worse, the temperature goes high and painful conditions amplify.

And then, suddenly, the turning point happens. There occurs a process of forming antibodies. These are special substances, capable to destroy any infection. During chicken pox, there are antibodies which kill the virus of chicken pox. But they will not react, for example, to the virus of rubeola. The infection of rubeola causes the production of other antibodies.

Besides, there are also special cells so-called lymphocytes-murderers in the blood of a person which alongside with antibodies take an active part in destruction of an infection.

When viruses or microbes get into the blood, other cells called as lymphocytes-assistants start helping murderers-cells reproduce as there are just a few of them in the blood of a healthy person. Thus, contrary to antibodies, formed lymphocytes-murderers are not specific in relation to any infection. They kill everything without analysis that is an alien for a human body.

As a rule, antibodies and lymphocytes-murderers fight infection quickly. And then, recovered, a person's body contains the specific antibodies in small numbers.

And if the virus of the same illness affects the body again, antibodies and cells-murderers will attack it and will destroy earlier than it will have time to reproduce and cause an illness. So, there is a resistance to a disease. This resistance also refers to as the immune system.