Across
- 1. A virus spread through bodily fluids that attacks the immune system and can lead to AIDS.
- 4. A type of immune cell originating from monocytes which are specialised for phagocytosis of pathogens and can act as antigen presenting cells.
- 10. Immunity produced by the transfer of antibodies from a mother to a foetus through the placenta or to a baby through breastfeeding.
- 12. A class of B lymphocyte which resides in the lymph nodes and provides long term immunity to a pathogen.
- 13. A form of B lymphocyte that actively produces and secretes antibodies in response to an infection.
Down
- 2. Immunity that is gained from infection with a live pathogen.
- 3. The continual competition over time where infectious agents are evolving better infection mechanisms whilst the hosts are simultaneously evolving better defences.
- 5. A microorganism which causes disease.
- 6. A cytokine released by virus infected cells which alerts nearby cells and triggers immune defences.
- 7. A type of bacterium which causes the disease tuberculosis which typically affects the lungs by causing tissue death.
- 8. The immune response to tissue damage involving swelling though the accumulation of immune cells and fluids.
- 9. The enzyme present in secretions such as tears, saliva and mucous which breaks down bacterial cell walls.
- 11. The ingestion of solid material (particularly pathogens and foreign material) by phagocytic cells.