Health

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Across
  1. 3. spread from one person or organism to another by direct or indirect contact
  2. 5. a disorder of structure or function in a human, animal, or plant
  3. 6. any of a group of spore-producing organisms feeding on organic matter
  4. 8. conditions or practices conducive to maintaining health and preventing disease
  5. 9. an organism, typically a biting insect or tick, that transmits a pathogen, disease, or parasite
  6. 10. lung inflammation caused by a bacterial or viral infection
  7. 13. an organism causing disease to its host
  8. 14. a phylum or group of phyla that comprises the single-celled microscopic animals
  9. 15. part of the body's defense to injury or infection
Down
  1. 1. a substance used to stimulate immunity to a particular infectious disease or pathogen
  2. 2. the period between exposure to an infection and the appearance of the first symptoms
  3. 4. an infective agent that typically consists of a nucleic acid molecule in a protein coat
  4. 7. a microorganism, especially one which causes disease
  5. 11. a member of a large group of unicellular microorganisms
  6. 12. the process of infecting or the state of being infected