Question

what is vaccination ? how does it work

Answer 1

The body has its own mechanism of providing immunity and thus, it produces antibiodies to fight against foreign bodies and to enhance this immunity, vaccination is done. A vaccine contains weakened or killed forms of microorganisms. These when enters the body, it stimulates the body to produce antibiodies and remember the microbe so that when the body is again attacked by the same microbe, it can kill it completely and quickly.