Pathogens and Immunization

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Across
  1. 1. invasion of and multiplication in a host by disease-causing pathogens or organisms
  2. 4. a preparation to stimulate the body's immune response against a specific infectious agent or disease
  3. 8. protein that protect you when an unwanted substance enters the body, produced by the immune system
  4. 10. small single-celled organisms, found almost everywhere on Earth
  5. 11. antimicrobial substance active against bacteria
  6. 14. cytotoxic lymphcyte
  7. 16. any substance that causes the body to make an immune response against that substance
  8. 17. cell that is infected by a virus or another type of microorganism
Down
  1. 2. when you get a vaccine, your immune system responds
  2. 3. cells that can 'remember' pathogens and protect us against an infection
  3. 5. the protein shell of a virus particle that surrounds its nucleic acid
  4. 6. the period of time between harmful bacteria or viruses entering a person's body and the effects of a disease appearing
  5. 7. process by which a cell surrounds and destroys foreign substances and removes dead cells
  6. 9. type of white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells
  7. 12. an infectious disease caused by ... viruses, symptoms e. g. fever, running nose, sore throat
  8. 13. help activate B-cells to secrete antibodies and macrophages to destroy ingested microbes, but they also help activate cytotoxic T-cells to kill infected cells
  9. 15. an infectious agent that can only replicate within a host organism