Principles of Vaccination Form

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but how do vaccines work regardless of whether they target viruses or bacteria vaccines work by stimulating the body's natural defenses the human body has an incredibly sophisticated defense system the immune system it's an internal army made up of millions of different kinds of soldier cells lymphocytes macrophages and specialized molecules such as antibodies this army has a very specific job to do locate and destroy any infectious agent that enters the body the better the immune system knows the enemy the better equipped it is to fight it this is the principle on which vaccination is based vaccination is a matter of teaching the immune system to identify the infectious agent in order to neutralize it it is also a matter of refreshing the immune systems memory so that in the future it will be able to recognize viruses and bacteria so the enemy is allowed to come inside in order to teach the body to defend itself exactly but certain precautions are taken like disarming it during vaccin