Understanding Vaccines

 


Vaccination is a simple, safe, and effective way of protecting you against harmful diseases, before you come into contact with them. It uses your body’s natural defenses to build resistance to specific infections and makes your immune system stronger.

Vaccines train your immune system to create antibodies, just as it does when it’s exposed to a disease. However, because vaccines contain only killed or weakened forms of germs like viruses or bacteria, they do not cause the disease or put you at risk of its complications.

Vaccination is the most important thing we can do to protect ourselves and they prevent millions of deaths worldwide every year. Since vaccines were introduced, diseases like polio that used to kill or disable millions of people are either gone or are now very rarely seen. However, if people stop having vaccines, it's possible for infectious diseases to quickly spread again.

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