Immune System

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Across
  1. 1. Vaccines contain _______ version of a pathogen, or their antigens
  2. 4. Lymphocytes and phagocytes are examples of _____ blood cells
  3. 7. Proteins produced by lymphocytes which destroy pathogens
  4. 10. Some lymphocytes turn into _______ cells after an infection
  5. 14. Antibodies are _______ shaped to antigens
  6. 15. Some diseases such as flu are spread indirectly through air _________
  7. 16. Some antibodies mark pathogens for engulfing by _______
  8. 17. HIV is caused by a _______
Down
  1. 2. ______ immunity involves memory cells and occurs after infections or vaccines
  2. 3. Some antibodies can directly ______ pathogens
  3. 5. A type of disease caused by pathogens, which can be spread
  4. 6. A disease causing microorganism
  5. 8. Plasmodium, which causes malaria, is an example of this
  6. 9. Proteins on the surface of a pathogen
  7. 11. Ringworm and athlete's foot are ________ infections
  8. 12. Some diseases such as athlete's foot can be spread by ______ contact
  9. 13. A bacterial infection spread in contaminated water