Our immune system is made up of a specialized network of organs, cells, and tissues working together to help protect against any disease. When a disease-causing germ enters our body, our immune system works in the following manner:

1) What is a vaccine?

Vaccines are a simple, safe, and effective way of protecting us against harmful diseases before we come into contact with them. They use our body’s natural defenses to build resistance to specific infections. Vaccines train our immune system to create antibodies, just as it does when 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 us at risk of its complications. For some vaccines, genetic engineering is used to make the antigens used in the vaccine. It’s much safer to get a vaccine than to get the disease it prevents.

2) What does it do to my body?

Many diseases are caused by tiny germs called bacteria or viruses. When people are vaccinated against a disease, they are purposely given the bacteria or virus that causes the disease (either through a shot, mouth, or nose spray). It causes little if any sickness in the person who receives it. Instead, it causes the body’s immune system to make proteins called antibodies, which fight disease. If the same bacteria or virus enters the body later on, the immune system will know how to fight it off. The vaccine is therefore a safe and clever way to produce an immune response in the body.

3) What vaccinations should my child take?

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