My daughter asked a question that I could not answer.
If you have a cold, you have symptoms such as fever, cold and sore throat. These symptoms, however, are the reactions of the immune system to bacteria, viruses and other germs.
So my question is: What would happen if the immune system did NOT respond? I know that bacteria can produce certain poisons. And viruses can capture human cells and make them produce more viruses.
Now to the naive part: But what's wrong with that?
- Are Viruses dangerous because these cells would then no longer perform their function?
- Without any immune system: Would a virus simply take over all human body cells?
- Is it not the organism in the first place, who puts itself in mortal danger (such as high fever or inflammations) because of the defense reaction?