Weekly Crossword #15: Pathogens

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Across
  1. 2. infectious protein particle, that affects the brain
  2. 3. Non-living, hijacks a host cell to cause disease
  3. 4. Single-celled microorganism, replicates quickly
Down
  1. 1. Mold, yeast & mildews: causes surface infections
  2. 2. Lives on / inside a host cell, feeds off its resources