Tuesday, July 20, 2021

Hoe does a vaccine work?

✔ Urdu Point on July 20, 2021 0 Comment


Vaccines reduce risks of getting a disease by working with your body’s natural defenses to build protection.

When you get a vaccine, your immune system responds. It:

  • Recognizes the invading germ, such as the virus or bacteria.

  • Produces antibodies. Antibodies are proteins produced naturally by the immune system to fight disease.

  • Remembers the disease and how to fight it. If you are then exposed to the germ in the future, your immune system can quickly destroy it before you become unwell.

    • The vaccine is therefore a safe and clever way to produce an immune response in the body, without causing illness. Our immune systems are designed to remember. Once exposed to one or more doses of a vaccine, we typically remain protected against a disease for years, decades or even a lifetime. This is what makes vaccines so effective. Rather than treating a disease after it occurs, vaccines prevent us in the first instance from getting sick.


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