Across
- 3. A person has ________________ immunity to a disease if they have been given ready made antibodies that have been made by other organisms.
- 4. The movement of a pathogen from one host to other is called ____________
- 6. The stomach contains ________________, which kills a lot of the bacteria in our food.
- 8. Transmissible diseases are also called ___________
- 9. The entry of the pathogen into the host body is called ____________
- 11. Lymphocytes are very important part of your immune system. The way in which they respond to pathogens by producing antibodies is called __________
- 13. An antigen is a protein molecule with a particular shape. This is complementary to the shape of another molecule which is called ____________
- 16. SARS-CoV-2 stands for ____________
Down
- 1. HIV stands for _________________
- 2. Hairs in the ___________ help to filter out particles from the air, which could contain pathogens.
- 5. A poisonous substance; a chemical that damages cells.
- 7. A person or other animal in which the pathogen lives and breeds is called a ____________
- 10. Diseases that are caused by pathogens can be passed from one host to another. They are called _____________ diseases.
- 12. Features that you expereince when you have a disease
- 13. A person has _______________ immunity to a disease if their body has made its own antibodies and memory cells that protect against that disease
- 14. A harmless preparation of dead or inactivated pathogens that is injected into the body to induce an immune response.
- 15. ____________ in the airways traps bacteria.
- 17. A _____________ is an organism that causes diseases.
- 18. Untreated sewage is called _____________ sewage.