Vaccinated Against Contagious Disease

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Immunisation is the process where an animal or person becomes protected against a virus or disease through an enhancement of their immune system. Vaccination against a specific disease not only reduces the incidence of that disease, it reduces the social and economic burden of the disease on communities. Very high immunisation coverage can lead to complete blocking of transmission for many vaccine preventable diseases. The world-wide eradication of smallpox and the near eradication of polio from many countries provide excellent examples of the role of immunisation in disease control.

When a large proportion of a population is vaccinated against a contagious disease. It is difficult to spread as most members of the community are protected against

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