Vaccination is the process of preventing any disease, under which a small amount of pathogenic bacteria is already delivered to the body through vaccine. So, a kind of immunity develops in the body against that disease. Due to the development of this immunity, the body prepares itself in advance to protect against the disease caused by that bacteria and the bacteria of that disease are not able to affect the human body. For this reason, vaccines are developed for various diseases.
To make a vaccine, the bacteria from which a disease occurs, a small part of the same dead bacteria is used to develop the vaccine.
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