Vaccines trick the body into build immunity against infectious diseases without causing the actual disease. Vaccines achieve this by introducing a dead or weakened version of the disease-causing germ (bacteria or virus) to the body’s immune system. In some cases, inactivated toxins (poisonous substances) produced by the germ are used in the vaccine to develop immunity (for example, diphtheria and tetanus vaccines).
After vaccination, if our immune system encounters the ‘real’ disease-causing germ, quick recognition allows our body to fight infection or neutralise toxins with a rapid and effective immune response.
Immunisation (vaccination) is the most effective preventative measure against infectious diseases. Some vaccines offer lifelong immunity. In other cases, booster shots are needed.
Serious side effects from vaccines are rare and much less common than the serious effects of the disease. Some diseases, such as poliomyelitis or diphtheria, can be so serious that the infected person may suffer lifelong complications or even die.
Vaccines trick the body into build immunity against infectious diseases without causing the actual disease. Vaccines achieve this by introducing a dead or weakened version of the disease-causing germ (bacteria or virus) to the body’s immune system. In some cases, inactivated toxins (poisonous substances) produced by the germ are used in the vaccine to develop immunity (for example, diphtheria and tetanus vaccines). After vaccination, if our immune system encounters the ‘real’ disease-causing germ, quick recognition allows our body to fight infection or neutralise toxins with a rapid and effective immune response.Immunisation (vaccination) is the most effective preventative measure against infectious diseases. Some vaccines offer lifelong immunity. In other cases, booster shots are needed.Serious side effects from vaccines are rare and much less common than the serious effects of the disease. Some diseases, such as poliomyelitis or diphtheria, can be so serious that the infected person may suffer lifelong complications or even die.
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