Across
- 2. the antibodies that were produced gradually disappear from the blood, but they leave behind ________ lymphocytes
- 3. injecting, or administering orally, small amounts of dead or weakened antigens into the body.
- 6. immunity where the lymphocytes antibodies to fight the disease before symptoms develop a second time
- 8. cells that protect the body
- 9. help blood to clot;
- 10. Anything that is foreign or different and causes antibody formation is called
- 11. the body's first Line of defence. It acts as a physical barrier.
- 13. made by lymphocytes to attack, disarm, destroy and remove pathogens.
- 14. Antibodies can pass across the placenta providing a newborn baby with immunity
Down
- 1. recognise the specific pathogen and mobilise
- 4. immunity by vaccination at a suitable time in the person's life,
- 5. are all around us and includes viruses, bacteria, etc.)
- 7. type of injection given to promote long lasting immunization, taken after the first vaccination.
- 12. a person is this to a disease if, on infection with the disease, no symptoms develop.
- 14. type of white blood cells that engulf the invading microorganisms,