Purpose of Vaccination Programmes | Blog
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What is the purpose of the vaccine?

What is the purpose of the vaccine?

by: Dr. Amitava Sen Gupta
Director - Mother & Child, Neonatology and Paediatrics

Diseases that vaccines prevent can be dangerous, or even deadly. Vaccines greatly reduce the risk of infection by working with the body’s natural defenses to safely develop immunity to disease. To understand how vaccines work, it is helpful to first look at how the body fights illness. When germs, such as bacteria or viruses, invade the body, they attack and multiply. This invasion is called an infection, and the infection is what causes illness. The immune system uses several tools to fight infection. Blood contains red blood cells, for carrying oxygen to tissues and organs, and white or immune cells, for fighting infection.

Benefits of a vaccination:

 Vaccines can serve 2 purposes, although not all vaccines address them both. First, they prevent disease in the person vaccinated.  Pretty much all vaccines do this.  Vaccines work by exposing your immune system to antigens so there is a pre-existing immune response waiting to respond to the agent you’ve vaccinated to, so your immune response is faster and more robust.  They do this by producing memory T cells and memory B cells and plasma cells that can live for decades, waiting for the chance to respond. The second thing vaccines do is they prevent you from spreading a disease.  For communicable diseases, if you don’t get the infection yourself or very rapidly clear the infection, you can’t spread it to others.

Vaccination and its role in Preventing Diseases:

It is very important that we as parents do everything possible to give our children a safe and healthy future. Among these endeavors, disease and injury prevention plays a vital role. Vaccination is the best way for prevention of Infectious disease. The disease like measles, mumps, polio, whooping cough, rubella, diphtheria, tetanus, rabies are still prevalent in the sub-continent. India has made remarkable achievement in eradicating Polio by mass vaccination. Smallpox is completely eradicated from the world through the efforts of vaccination only and the present generation has not even heard of the illness. The disease like rabies and tetanus have no cure and are entirely vaccine preventable. If we continue vaccinating now and vaccinating completely, parents in the future may be able to trust that some diseases of today will no longer be around to harm their children in the future.

 

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