write the role of immunisation in eradicating diseases from a country
Answers
Immunisation is the process whereby an individual’s immune system becomes protected against an infection. The purpose of immunisation is to prevent people from acquiring infectious diseases and to protect them against the associated short and longer-term complications of the disease.
Vaccine refers to the material used for immunisation, while vaccination refers to the act of giving a vaccine to a person. Vaccines work by stimulating the body’s defence mechanisms against an infection. These defence mechanisms are collectively referred to as the immune system. Vaccines mimic and sometimes improve on the body’s protective response, helping the immune system detect and destroy the infection when it is encountered in the future without development of significant symptoms or complications.