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The process of 'training' the immune system with a vaccine is called immunisation (also called vaccination or inoculation).
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| Submitted: Mon Sep 29 2003
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intro everyday, millions of germs (bacteria or viruses) enter our body. These germs are in the air we breathe, the water we drink, the food we eat and the things we touch. It is virtually impossible to avoid them. Some of these germs are very dangerous and cannot be killed by antibiotics or other medicines. To help protect us against dangerous germs, our bodies have developed an immune system. As soon as our immune system realizes that a dangerous germ has entered our body it attacks and destroys it. However, the immune system is not perfect. It sometimes takes a while for it to tell the difference between a dangerous germ and a part of our body, especially if it has never seen the germ before. The problem is that while the immune system is trying to decide whether or not it is safe to attack the new germ, the germ...
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