Across
- 3. immunity Long-lasting immunity that is induced in the host itself by the antigen.
- 4. The delivery of antigenic material to produce immunity to a disease (produce an immunised individual).
- 6. The status of a person with resistance against a particular pathogen as a result of vaccination.
- 8. sclerosis An autoimmune disorder that results in destruction of myelin around nerve cells and results in neural impairment.
- 9. An undesirable overreaction of normal immune system to antigens.
- 10. deficiency disease Disorders in which immune system function is impaired, often because of loss of particular types of immune cells.
- 12. response The more rapid and stronger response of the immune system to an antigen that it has encountered before.
- 14. The first phase of an allergic response in which the body becomes primed to respond to an allergen but there are no symptoms.
- 15. immunity Indirect protection from an infectious disease provided to susceptible individuals because most of the population has been immunised against a specific pathogen.
- 16. Any substance that causes an allergic reaction.
- 17. acquired immunity Immunity developed through artificial exposure to antigens (e.g. vaccination).
Down
- 1. response The initial response of the immune system to exposure to an antigen.
- 2. immunity Immunity gained by the receipt of ready-made antibodies.
- 3. disease A disease resulting from the inappropriate targeting and destruction of the body's own cells and tissues.
- 5. A chemical substance released by mast cells and involved in inflammatory and allergic responses.
- 7. reaction The hypersensitive response of the immune system in response to an allergen it has previously been sensitised to.
- 11. antibodies Antibodies made by clones of one type of immune cell.
- 13. acquired immunity Immunity developed through the natural exposure to antigens (e.g. natural exposure to a pathogen).