Across
- 2. a lymphocyte of a type produced or processed by the thymus gland, actively participating in the immune response.
- 5. (of a disease or condition) regularly found among particular people or in a certain area.
- 8. the ability of an organism to resist a particular infection or toxin.
- 10. a toxin or other foreign substances which induces an immune response in the body.
- 12. a person who studies or is an expert ub he branch of medicine involving diseases.
- 15. the network of vessels through which lymph drains from the tissues into the blood.
- 16. a bacterium, virus, or other microorganisms that can cause diseases.
- 17. an infectious microbe consisting of a segment of nucleic acid.
- 18. a complex network of cells, tissues, organs, and what they make that helps the body fight off diseases.
Down
- 1. a form of small leukocyte (white blood cells) with a single round nucleus, mostly in lymphatic system.
- 3. an illness caused by an infectious agent.
- 4. chronic conditions that do not result from an infectious process.
- 6. (of a disease) prevalent over a whole country or the world.
- 7. a lymphocyte not processed by the thymus gland, responsible for producing antibodies.
- 9. a member of a large group of unicellular microorganisms that can cause diseases.
- 11. a widespread occurrence of an infectious disease in a community at a particular time.
- 13. the invasion and multiplication of microorganisms.
- 14. a blood protein produced in response to and counteracting a specific antigen.