11. Immunization lecture presentation powerpoint

11. Immunization lecture presentation powerpoint

1. Immunization is a form of preventive medicine . It prepares the body to fight against infection . Its aim is to protect individuals and communities from infectious diseases.

2. How does immunization work Immunization operates on the premise that once you have had a disease, you are unlikely to contract it again.

3. Through injections, oral drops or scratches on the skin, the body is exposed to weakened or dead disease-producing microorganisms or to the toxins they produce.

4. This will cause the individual to develop the same antibodies and antitoxins that would have been developed if the person had actually contracted the disease, in order to fight the disease.

5. Once the body has been exposed to an infection, the immune system will "recognize" if the disease were to recur, and produce antibodies or antitoxins to destroy the infection.

6. The body has to be exposed to infection once for the immune system to recognize it. This is done through immunization.

7. What are the risks of immunization

8. Very rarely, one hears of cases where immunization has resulted in the development of fatal complications . Most children have a mild reaction to immunization, but a few have become seriously ill. With some vaccines there is a negligible risk of serious or permanent damage or even death