Infectious Disease crossword puzzle

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Across
  1. 2. A nonliving, infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.
  2. 4. A unicellular organism that lacks a nucleus and membrane bound organelles.
  3. 6. A disease that cannot be spread from one organism to another.
  4. 7. A disease that is caused by a pathogen and that can be spread from one individual to another.
  5. 8. Measures contributing to cleanliness and good health
  6. 9. Single-celled or noncellular spherical, spiral or rod-shaped organisms.
Down
  1. 1. Organisms made up of cells that possess a membrane-bound nucleus (that holds genetic material) as well as membrane-bound organelles.
  2. 3. An organism that feeds on a living host.
  3. 4. A worldwide epidemic.
  4. 5. Affecting many persons at the same time, and spreading from person to person in a locality where the disease is not permanently prevalent.