Question

State the principle of immunization .Name any two diseases for which vaccine is available

Answer 1

Immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an agent (known as the immunogen).

The most common and serious vaccine-preventable diseases tracked by the World Health Organization (WHO) are: diphtheria, Haemophilus influenzae serotype b infection, hepatitis B, measles, meningitis, mumps, pertussis, poliomyelitis, rubella, tetanus, tuberculosis, and yellow fever.

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