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Vaccine is an extract of a dead germs of a disease which on injection into a healthy person provides temporary immunity by including antibodies formation. Thus antibody provoking agents are called Vaccines. The process of introduction of vaccine into an individual to provide protection against a disease is called Vaccination. In vaccination, a preparation of antigen proteins of pathogens or inactivated/weakened pathogens (vaccine) is introduced into the body.
Types of vaccines are:
i)              Live vaccines (attenuated vaccines)
ii)             Killed vaccines (inactivates vaccines)
iii)            Toxoids
iv)            Cellular fractions
v)             Combinations  

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